red lion IAMS Instruction sheet

GENERAL DESCRIPTION
The IAMS3535 Smart Analog to MODBUS Conditioner with Alarms
module accepts a wide range of DC analog process signals There are eighteen
different DC analog input ranges which determine the input span and type The
input accepts a maximum of 110 VDC and 110 mA DC
The IAMS converts an analog input signal into a register format that can be
read using ASCII or RTU MODBUS protocol With the features of gain and
offset, the input signal can be scaled to meet process requirements Additionally,
two setpoint values can be entered for dual relay process monitoring alarms
The IAMS is programmed with Windows™ based SFIMS software The
software allows configuration, calibration, and storage of IAMS program files
Additionally, all setup parameters can be interrogated and modified through
MODBUS register and coil commands
The RS485 port allows the IAMS to be multidropped, with Baud rates up to
38400 The CBPRO007 programming cable converts the RS232 port of a PC to
RS485, and is terminated with an RJ-11 connector The bidirectional capability
of the CBPRO007 allows it to be used as a permanent interface cable as well as
a programming cable
The IAMS’s two Form A relay alarms can be configured independently for
absolute high or low acting with balanced or unbalanced hysteresis Alarm 2 can
also be configured for deviation and band alarms In these modes, Setpoint 2
tracks Setpoint 1 Adjustable alarm trip delays can be used for delaying output
response The alarms can be programmed for Automatic or Latching Latched
alarms must be reset via serial command A standby feature supresses the alarm
during power-up until the process stabilizes outside the alarm region Standby
eliminates power-up tripping for low acting alarms The output relays can also
be manually controlled via register commands
The module’s high density packaging and DIN rail mounting saves time and
panel space The module is equipped with a universal mounting foot for
attachment to standard DIN rails, including top hat (T) profile or G profile rail
SAFETY SUMMARY
All safety related regulations, local codes and instructions that appear in the
manual or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired
ORDERING INFORMATION
SPECIFICATIONS
1. POWER: 18-36 VDC, 3 0 W max or 24 VAC, ± 10%, 50/60 Hz, 4 VA max
2. INPUT DC RANGES:
0-20 mV, 0-50 mV, 0-100 mV, 0-200 mV, 0-500 mV, 0-1V, 0-2 V, 0-5 V,
0-10 V, 0-20 V, 0-50 V, 0-100 V, 0-2 mA, 0-5 mA, 0-10 mA, 0-20 mA,
0-50 mA, 0-100 mA
3. MAX. INPUT SIGNAL:
Current Input: 110 mA DC
Voltage Inputs: Terminal 7: 1 VDC +10%
Terminal 8: 10 VDC +10%
Terminal 9: 100 VDC +10%
4. INPUT RESISTANCE:
Current: 10 Ohms
Voltage: greater than 100 K
5. INPUT PROTECTION: Surge suppressor diode
Current Terminal: Protected to 110 mA DC max , 1 1 VDC
100 V Terminal: Protected to 110 VDC
1 V & 10 V Terminal: Protected to 100 VDC for one minute
6. INPUT COMMON MODE REJECTION: 50/60 Hz, 110 dB min
7. ISOLATION LEVEL: 1 5 kV @ 50/60 Hz, 1 min between input, RS485
and power supply 2300 Vrms, 1 min to relay contacts
1
OANALOG TO MODBUS CONVERSION
O18 DIFFERENT DC ANALOG INPUT RANGES
OPROCESSOR BASED SCALING
OPC CONFIGURATION SOFTWARE
ODUAL SETPOINT RELAY ALARMS
OFOUR WAY SIGNAL ISOLATION
MODEL IAMS - INTELLIGENT ANALOG TO MODBUS CONDITIONER W/ ALARMS
MODEL
IAMS
DESCRIPTION
Smart Analog to Modbus Conditioner w/Alarms
PART NUMBER
IAMS3535
CBPRO
SFIMS
Programming Interface Cable
PC Configuration Software for indows
CBPRO007
SFIMS
-
CBJ
RJ11 to Terminal Adapter
Cable RJ11 to Unterminated 7 foot length
DRRJ11T6
CBJ11A07
Cable RJ11 to RJ11 6 inch jumper CBJ11BD5
DIMENSIONS In inches (mm
CAUTION: Read complete
instructions prior to installation
and operation o the unit.
CAUTION: Risk o electric shock.
Bulletin No. IAMS-A
Drawing No. LP0475
Released 9 01
Tel [phone]
Fax [phone]
www.redlion-controls.com
UL Recognized Co ponent,
File # E179259

2
8. SERIAL COMMUNICATIONS:
Type: RS485, MODBUS RTU and ASCII modes
Baud: 300, 600, 1200, 2400, 4800, 9600, 19 2K, and 38 4K
Format: 7/8 bit, odd, even and no parity
Transmit Delay: Programmable (See Transmit Delay explanation in Step 6)
Transmit Enable (TXEN): (primarily for 20 mA loop converter)
VOH = 10 VDC max VOL = 0 5 VDC @ 5 mA max current limit
9. A/D CONVERTER: 16 bit resolution
1 . ACCURACY (including linearity): 0 1% of span
11. RESOLUTION: 0 002% of span
12. GAIN / OFFSET: Programmable
13. RELAY OUTPUTS:
Type: 2 Form A N O contacts
Rating: 5A @ 30 VDC or 250 VAC max (resistive)
1/10 HP @ 120 VAC (inductive)
Response Time: 155 msec max to close including step response, 153 msec
max to open
14. OUTPUT ON DELAY TIME: Programmable from 0 to 32000 sec,
±0 01% - 1 sec max
15. MEMORY: Nonvolatile E2PROM retains all programmable parameters
16. ENVIRONMENTAL CONDITIONS:
Operating Temperature Range: -20 to +65 GC
Storage Temperature Range: -40 to +85 GC
Operating and Storage Humidity: 85% max relative humidity (non-
condensing) from -20 to +65 GC
Temperature Coefficient: +0 01%/ GC (100 PPM GC) max
Altitude: Up to 2000 meters
17. CERTIFICATIONS AND COMPLIANCE:
SAFETY
UL Recognized Component, File # E179259, UL3101-1, CSA 22 2 No 1010-1
Recognized to U S and Canadian requirements under the Component
Recognition Program of Underwriters Laboratories, Inc
IECEE CB Scheme Test Certificate # US/5141A/UL,
CB Scheme Test Report # 01ME11540-0702001
Issued by Underwriters Laboratories, Inc
IEC 1010-1, EN 61010-1: Safety requirements for electrical equipment
for measurement, control, and laboratory use, Part 1
ELECTROMAGNETIC COMPATIBILITY
Notes:
1. This device was designed for installation in an enclosure. To avoid
electrostatic discharge to the module in environments with static levels
above 6 KV, precautions should be taken when the device is mounted
outside an enclosure. hen working in an enclosure (ex. making
connections, etc.), typical anti-static precautions should be observed
before touching the module.
Refer to the EMC Installation Guidelines section of this bulletin for
additional information.
18. CONSTRUCTION: Case body is green high impact plastic Installation
Category II, Pollution Degree 2
19. CONNECTIONS: 14 AWG max
2 . MOUNTING: Universal mounting foot for attachment to standard DIN
style mounting rails, including top hat (T) profile rail according to EN50022
- 35 x 7 5 and - 35 x 15, and G profile rail according to EN50035 - G32
21. WEIGHT: 4 5 oz (127 57 g)
MODULE ISOLATION
The IAMS features “4-way” signal isolation The 4-way isolation is a
combination of optical, transformer and relay barriers, providing common mode
voltage (CMV) isolation to 1 5 KV for 1 minute between input, RS485, and
power supply Isolation between relay contacts and all other inputs is 2300 Vrms
for 1 minute
LED FUNCTIONALITY
Power mains class A
Enclosure class AEN 55011RF interference
Emissions to EN 55 11
Level 3; 10 V/mENV 50204Simulation of cordless telephone
150 KHz - 80 MHz
Level 3; 10 V/rms EN 61000-4-6RF conducted interference
Level 3; 2 KV power
Level 4; 2 KV I/O EN 61000-4-4Fast transients (burst)
80 MHz - 1 GHz
Level 3; 10 V/MEN 61000-4-3Electromagnetic RF fields
Level 3; 8 KV air1
Level 2; 4 KV contact EN 61000-4-2Electrostatic discharge
200 Hz, 50% duty cycle
Immunity to EN 5 82-2
900 MHz ± 5 MHz
CONDITION GREEN LED 2 RED LEDS
Power Applied On ———
Communication Received Flashing ———
Respective Alarm ——— On
Checksum error Flashing Flashing
Calibration Off On
BLOCK DIAGRAM

3
WIRING CONNECTIONS
All conductors should meet voltage and current ratings for each terminal
Also, cabling should conform to appropriate standards of good installation,
local codes and regulations When wiring the module, use the numbers on the
label to identify the position number with the proper function Strip the wire,
leaving approximately 1/4" (6 mm) of bare wire exposed Insert the wire into
the terminal, and tighten the screw until the wire is clamped tightly (Pull wire
to verify tightness ) Each terminal can accept up to one #14 AWG (2 55 mm),
two #18 AWG (1 02 mm), or four #20 AWG (0 61 mm) wires
MODULE POWER CONNECTIONS
Module power is connected to terminals 1 and 2 For best results, the power
should be relatively “clean” and within the specified limits Drawing power
from heavily loaded circuits or from circuits that also power loads that cycle on
and off should be avoided It is recommended that power supplied to the module
be protected by a fuse or circuit breaker
INPUT CONNECTIONS
Current Input
Wiring for a current input is
connected to terminals 10 (+) and 12 (-)
Terminal 10 (+): 100 mA
Voltage Input
Wiring for a voltage input is
connected to terminal 12 (-) and one of
the voltage terminals listed below
Terminal 7 (+): 1 VDC max
Terminal 8 (+): 10 VDC max
Terminal 9 (+): 100 VDC max
RELAY OUTPUT CONNECTIONS
There are two Form A output relays The wiring for Relay 1 is connected
between terminals 5 and 6 The wiring for Relay 2 is connected between
terminals 3 and 4
To prolong contact life and suppress electrical noise interference due to the
switching of inductive loads, it is good installation practice to install a snubber
across the contactor Follow the manufacturer’s instructions for installation
Note: Snubber leakage current can cause some high impedance loads to be held
ON.
DEFAULT SERIAL SETTING CONNECTION
If the IAMS settings are unknown, or forgotten, they can be reset to the
factory defaults by connecting the Serial Default terminal 11 to Input Comm
terminal 12 with a jumper, and then cycling power
DEFAULTS:
RS485 SERIAL CONNECTIONS
There are two RJ-11 connectors located on the bottom for paralleling
communications For single device communications, either connector can be
used When used in conjunction with Red Lion Control Paradigm HMI
products, reverse A+ and B- wiring
RJ11 IAMS
1 Not used
2B-
3A+
4 COMM
5 TXEN
6
2345
Not used IAMS CONNECTOR
STEP 1 WIRING THE MODULE
Protocol: RTU
Address: 247
Baud Rate: 9600
Data Bits:
Parity:
8
none
Although this unit is designed with a high degree of immunity to Electro-
Magnetic Interference (EMI), proper installation and wiring methods must be
followed to ensure compatibility in each application The type of the electrical
noise, source or coupling method into the unit may be different for various
installations Cable length, routing, and shield termination are very important
and can mean the difference between a successful or troublesome installation
Listed below are some EMC guidelines for successful installation in an
industrial environment
1 Use shielded (screened) cables for all Signal and Control inputs The shield
(screen) pigtail connection should be made as short as possible The
connection point for the shield depends somewhat upon the application
Listed below are the recommended methods of connecting the shield, in order
of their effectiveness
a Connect the shield only at the rail where the unit is mounted to earth
ground (protective earth)
b Connect the shield to earth ground at both ends of the cable, usually when
the noise source frequency is above 1 MHz
c Connect the shield to common of the unit and leave the other end of the
shield unconnected and insulated from earth ground
2 Never run Signal or Control cables in the same conduit or raceway with AC
power lines, conductors feeding motors, solenoids, SCR controls, and
heaters, etc The cables should be run in metal conduit that is properly
grounded This is especially useful in applications where cable runs are long
and portable two-way radios are used in close proximity or if the installation
is near a commercial radio transmitter
3 Signal or Control cables within an enclosure should be routed as far away as
possible from contactors, control relays, transformers, and other noisy
components
4 In extremely high EMI environments, the use of external EMI suppression
devices, such as ferrite suppression cores, is effective Install them on Signal
and Control cables as close to the unit as possible Loop the cable through the
core several times or use multiple cores on each cable for additional
protection Install line filters on the power input cable to the unit to suppress
power line interference Install them near the power entry point of the
enclosure The following EMI suppression devices (or equivalent) are
recommended:
Ferrite Suppression Cores for signal and control cables:
Fair-Rite # 0443167251 (RLC # FCOR0000)
TDK # ZCAT3035-1330A
Steward # 28B2029-0A0
Line Filters for input power cables:
Schaffner # FN610-1/07 (RLC # LFIL0000)
Schaffner # FN670-1 8/07
Corcom # 1 VR3
Note: Reference manufacturer’s instructions when installing a line filter.
5 Long cable runs are more susceptible to EMI pickup than short cable runs
Therefore, keep cable runs as short as possible
EMC INSTALLATION GUIDELINES

4
STEP 4 PROGRAMMING THE INPUT
The IAMS receives an analog input, converts it to a raw digital value, and stores this number in the ADC Value (register 40001) This number is scaled
into engineering units using the Gain Value (register 40010) and Offset Value (register 40011) The result of this scaling is stored as the Process Value
(register 40002) It is also stored in the IEEE 754 Standard 32-bit floating decimal format (register 40003 and 40004) The non-scaled ADC, the scaled
Process value, or the Floating point value may be accessed for the purpose of monitoring the input level
INPUT
SIGNAL ADC READING
Register 40001
INTERNAL
MATH
GAIN/OFFSET PROCESS
VALUE
IEEE STANDARD 754
FLOATING DECIMAL POINT
LO Order Byte
HI Order Byte
Register 40003
Register 40004
Register 40002
Register
40010/40011
Input Range: Select the desired input range from the pull down menu
Gain & Offset: The Gain & Offset values are used to scale the input signal into
engineering units The result is stored in the Process Value register To determine the
Gain and Offset for your application, use the Scaling Wizard button
STEP 3 PROGRAMMING - Getting Started
Run RLCPro by double-clicking the icon, or use the start menu
Use the FILE pull-down menu
to select a NEW file
You will be prompted to
select the proper device,
and then the model
STEP 2 INSTALLING SFIMS Software for Intelligent Modules)
Insert the SFIMS diskette into the A: or B: drive Then Run
A:\SETUP (or B:\SETUP) to install RLCPro onto the hard drive An
icon labeled RLCPro will be created under the group RLCPro

5
Filter Response: The Filter Response is a time constant, in tenth of second increments, that is used
to stabilize an erratic input The Process value stabilizes to 99% of the final value within
approximately 5 time constants A value of ‘0’ disables digital filtering
Filter Band: Filter Band is a value expressed in Process units When a fluctuating signal remains
within the band value, the Digital Filter is active, and therefore stabilizes the Process Value
When a fluctuating signal exceeds the Filter Band value, the Digital Filter is momentarily
disabled to allow for a quick response to valid process changes Once the signal variation is less
than the Filter Band value, the Digital Filter is reactivated
The Scaling Wizard prompts you to enter four values Simply key in the Minimum and
Maximum signal Input Values, and the desired Process Value equivalents Press the Next
button to calculate the new Gain and Offset values
Note: The Process Values must be between –32000 and +32000. (negative values will be
transmitted as 2’s complement)
Once the Next key is pressed, the software will display the new Gain and Offset values
It will also display the exact Process Value result for your input signal The Process values
may be different than those previously entered due to the resolution of the Gain and Offset
values Press the Accept button to have the Gain and Offset values entered into the Input
Setup screen When a download is performed, the Gain and Offset values are written to
registers 40010 and 40011 respectively
STEP 5 PROGRAMMING THE ALARMS
Action: Alarm 1 can be programmed for 5 modes of operation, Alarm 2 has 8 possible modes
Manual: In Manual mode, the Alarms are forced on and off by writing ‘0’ or ‘1’ to the appropriate
MODBUS register (Alarm 1 state = 40024, Alarm 2 state = 40025)
Absolute HI: (with balanced or unbalanced hysteresis) The Alarm energizes when the Process exceeds the
Setpoint Limit Value
Absolute LO: (with balanced or unbalanced hysteresis) The Alarm energizes when the Process falls below
the Setpoint Limit Value
Deviation HI, Deviation LO, Band Outside: In these modes, Alarm 2 “tracks” Alarm/Setpoint 1 (See
Setpoint ALarm Figures below )
Setpoint: The Alarm setpoint, entered in scaled Process units
Hysteresis: Hysteresis is used to eliminate output chatter The Hysteresis Amount is the difference between
the points that an Alarm will “turn on” and “turn off” In Unbalanced modes, the alarm turns on at the
Setpoint, and turns off at Setpoint-HYS for HI alarms, and Setpoint+HYS for LO alarms In Balanced
modes, the Hysteresis is evenly divided above and below the Setpoint value (See the Setpoint Alarm
Figures below) The software calculates the hysteresis percentage and displays it for you
Note: The Setpoint, along with the Hysteresis, MUST NOT produce a “trip point” higher than 32,000, or
less than -32,000. (See the Setpoint Alarm Figures below)
Reset:The alarms can be programmed for Latched or Automatic In Automatic mode, an energized alarm
turns off by itself once the Process leaves the alarm area In Latched mode, an energized alarm requires
a serial reset This is done by writing a ‘0’ to the appropriate MODBUS register (Alarm 1 state = 40024,
Alarm 2 state = 40025)
On Delay: The time, in whole second increments, that the alarm will take to energize when the Process
Value crosses into an alarm state area
Enable Standby Delay: Standby prevents nuisance (typically low level) alarms after a power up After
powering up the unit, the Process must stabilize outside the alarm region Once this has occurred, the
standby is disabled, and the alarm responds normally until the next module power up

6
STEP 6 PROGRAMMING THE IAMS COMMS PORT
The IAMS’ serial port must match the device being used to communicate to it
MODBUS Protocol: RTU or ASCII
Unit Address: 1-247
Baud Rate: 300, 600, 1200, 2400, 4800, 9600, 19200, or 38400
Data Bits: 7 or 8
Parity: odd, even, or none
Transmit Delay: Programmable from 1-255 milliseconds The Transmit Delay is the time the IAMS
will wait to respond to a serial command, UNLESS the values in the table below are larger
Note: If the Unit Address, Protocol, Baud rate, etc. are
changed, and then a download is performed, the unit
will now respond to the new settings. Any further
attempts to communicate to the module must target
the new address, with the new settings.
The IAMS’ serial settings must match the device that
it is communicating with. If you do not know or
cannot recall the IAMS settings, they can be reset
back to factory defaults. Simply jumper the Serial
Default terminal to Common, and cycle power. The
serial settings will default to RTU mode, 9600 baud,
8 data bits, no parity, with an address of 247.
BAUD RTU ASCII
38400 2 msec. 2 msec.
19200 2 msec. 2 msec.
9600 5 msec. 2.3 msec.
4800 9 msec. 4.6 msec.
2400 17 msec. 9.2 msec.
1200 33 msec. 18.4 msec.
600 65 msec. 36.7 msec.
300 129 msec. 73.4 msec.
SETPOINT ALARM FIGURES

7
STEP 7 PC PORT CONFIGURATION
Go to the SETTINGS pull-down menu, and select PC PORT SETTINGS
The Communications Settings window allows you to set up the software properly to perform a download
Connection: Select the computer port (COMM 1-4) that the IAMS is connected to
NOTE: The following settings must match the IAMS. If you do not know or cannot recall the IAMS settings, they
can be reset back to factory defaults. Simply jumper the Serial Default terminal to Common, and cycle power.
The serial settings will default to RTU mode, 9600 baud, 8 data bits, No parity, with an address of 247.
Protocol: RTU or ASCII
Unit Address: 1-247
Baud Rate: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400
Data Bits: 7 or 8
Parity: odd, even, or none
Connect the IAMS to the computer with the CBPRO007 interface cable (or any suitable RS232/RS485 converter) Apply 18-36 VDC to the supply terminals of
the IAMS
Note: The CBPRO007 download cable DOES NOT typically require power. In most cases it will derive its power from the PC. If communications
can not be established, follow the troubleshooting guide. If it is determined that the converter requires power, attach a 12 VDC power supply to
the VDC and common terminals of the cable.
STEP 8 DOWNLOADING
Go to the FILE pull-down menu, and select DOWNLOAD
The following screen prompts you to
ensure that the proper file is downloaded
to the correct module Click “OK” to
continue

8
The IAMS is fully calibrated from the factory Voltage or Current range calibration is recommended
every two years Internal ADC calibration is not recommended unless the voltage or current values are
still incorrect after their calibration If the ADC calibration is performed, the voltage or current
calibration must be performed Each input range has its’ own minimum and maximum ADC references
(registers 40005 and 40006) which are recalled when the range is selected This allows independent
calibration for the desired range Calibration may be performed via MODBUS commands, or by using
SFIMS software
Allow the IAMS to warm up for 30 minutes minimum, and follow the manufacturer’s warm-up
procedure for the calibration source
Note: Calibration requires a precision signal source with an accuracy of 0.025%, and must be capable
of generating the full span of the range to be calibrated. hen using SFIMS for calibration, connect
the signal source to the IAMS, select the proper range in the software, and press the Calibrate button.
Follow the calibration procedures in the software.
STEP 11 CALIBRATION
STEP 9 SCRATCH PAD MEMORY
STEP 10 VIEW REGISTERS
The Scratch Pad category can be used to read or write to the Scratch Pad memory locations (41101-
41116) The Scratch Pad locations can be used to store user information
Data Format: Allows registers to be viewed in decimal or hexadecimal format
Upload: The Upload button causes SFIMS software to read the Scratch Pad registers from the module
Download: The Download button causes SFIMS software to write to the Scratch Pad registers in the
module
Note: Downloading new values to the module Scratch Pad locations overwrites the information that is
currently stored in those registers.
The View Registers category can be used as a method of diagnostics Use the IAMS Register Table
as a reference of register assignments and data
First Register: This specifies the first, or only, register to be read in a block
# of Registers: This is the length of the block to be read The module supports block read and write
commands up to 16 registers in length
Data Format: Allows registers to be viewed in decimal or hexadecimal format
Read: Clicking the Read button causes SFIMS software to read the selected register from the module
Write: Clicking the Write button causes SFIMS software to write the selected registers to the module
Note: The rite button overwrites the existing register values, and may change the module setup and
operation.

9
TROUBLESHOOTING
PROBLEM CAUSE REMEDIES
Green LED will not light Module power Verify module power connections and level
Process Value not changing Input Signal Check input signal connections and level
Process Value not changing or incorrect Incorrect scaling Check input setup, scaling values, and re-download
Alarms disabled Alarm threshold over range*; checksum
error; ADC overrange
Process Value stays at 32001 or -32001
Check input signal connections and level
Check Input setup, and re-download
Process Value stays at 32002 or -32002
Check input signal connections and level
Check Input Setup, and re-download
Perform calibration procedure
Flashing LEDs, alarms disabled Parameter checksum*, loss of parameter
settings
Re-download SFIMS file (reconfigures each parameter)
Flashing LEDs, alarms disabled Calibration checksum* Perform calibration procedure
ill not communicate
NOTE: The IAMS’ serial settings must match the device that it is communicating with. If you do not know or
cannot recall the IAMS settings, they can be reset back to factory defaults. Simply jumper the Serial Default terminal
to Common, and cycle power. The serial settings will default to RTU mode, 9600 baud, 8 data bits, no parity, with
an address of 247.
Incorrect serial settings (IAMS port)
Incorrect serial settings (computer port)
Incorrect wiring
ADC over range* due to:
Incorrect input signal
Incorrect Input Setup
Improper Calibration
Gain/Offset over range* due to:
Incorrect input signal
Incorrect Input setup scaling
Adjust alarm Setpoint and Hysteresis to ensure trigger
point is within -32,000 - +32,000 (See Alarm setup)
Verify IAMS communications setup
Go to pull down menu SETTINGS, PC PORT SETTINGS
Try switching A+ and B- lines
Provide a common connection
* Can be monitored by accessing coils 9-14, or register 40022
For further technical assistance, contact technical support

10
INSTALLATION
The unit is equipped with a universal mounting foot for attachment to standard DIN style mounting rails, including G profile rail
according to EN50035 - G32 , and top hat (T) profile rail according to EN50022 - 35 x 7 5 and - 35 x 15 The unit should be installed in a
location that does not exceed the maximum operating temperature and provides good air circulation Placing the unit near devices that
generate excessive heat should be avoided
G Rail Installation
To install the IAMS on a “G”
style DIN rail, angle the module
so that the upper groove of the
“foot” catches under the lip of the
top rail Push the module toward
the rail until it snaps into place
To remove a module from the
rail, push up on the bottom of the
module while pulling out and
away from the rail
T Rail Installation
To install the IAMS on a “T”
style rail, angle the module so
that the top groove of the “foot”
is located over the lip of the top
rail Push the module toward the
rail until it snaps into place To
remove a module from the rail,
insert a screwdriver into the slot
on the bottom of the “foot”, and
pry upwards on the module until
it releases from the rail
APPLICATION
Untreated waste needed to be pumped up a hill to a treatment
center To prevent undesirable shut downs, a backup pump and
a flow transducer were installed in the line The operator
needed the ability to monitor the flow, as well as the ability to
change setpoints from the main station, located 4000 feet away
The temperature within the pumping station was not controlled
The IAMS was installed because of the size, operating
temperature range, serial communications, and the ability to
control the pumps When the flow is below a certain level, the
IAMS switches the Main Pump off, and the Backup Pump on
Operators can monitor the flow and change the setpoints from
the main building using a PC acquisition program with a
MODBUS driver

11
MODBUS INFORMATION
The remaining sections of this bulletin list IAMS Register Format information and MODBUS conformity
MODBUS SUPPORTED FUNCTION CODES
FC01: Read Coils
1 Valid coil addresses are 1-16
2 Only 16 coils can be requested at one time
3 Block starting point can not exceed coil 14
FC05: Force Single Coil
1 Valid write (force) coil addresses are 1-10
2 <8001>HEX is echoed back that the coil did not change during the request to
write to a read only coil
FC15: Force Multiple Coils
1 Valid write (force) coil addresses are 1-10
2 Block starting point can not exceed coil 10
3 If a multiple write includes read only coils, then only the write coils will
change
FC03: Read Holding Registers
1 Valid addresses are 40001-40026, 41001-41010, 41101-41116
2 Only 16 registers can be requested at one time
3 Block starting point can not exceed the register boundaries
4 <8000>HEX is returned in registers beyond the boundaries
5 Holding registers are a mirror of Input registers
FC06: Preset Single Register
1 Valid write (preset) addresses are 40007-40026, 41101-41116
2 <8001>HEX is echoed back that the register did not change during the
request to write to a read only register
3 If the write value exceeds the register limit (see Register Table), then that
register value changes to its exceeded high or low limit It is also returned in
the response
FC16: Preset Multiple Registers
1 Valid write (force) register addresses are 40007-40026, 41101-41116
2 No response is given with an attempt to write to more than 16 registers at a
time
3 Block starting point can not exceed the read and write boundaries
4 If a multiple write includes read only registers, then only the write registers
will change
5 If the write value exceeds the register limit (see Register Table), then that
register value changes to its exceeded high or low limit
FC04: Read Input Registers
1 Valid addresses are 30001-30026, 31001-31010, 31101-31116
2 Only 16 registers can be requested at one time
3 Block starting point can not exceed register boundaries
4 <8000>HEX is returned in registers beyond the boundaries
5 Input registers are a mirror of Holding registers
FC08: Diagnostics
The following is sent upon FC08 request:
Unit Address, 08 (FC code), 04 (byte count), “Total Comms” count,
“Total Good Comms” count, checksum of the string
“Total Comms” is the total number of messages received that were addressed to
the IAMS “Total Good Comms” is the total messages received by the IAMS
with good address, parity and checksum Both counters are reset to 0 upon
response to FC08
FC17: Report Slave ID
The following is sent upon FC17 request:
Unit Address, 17 (FC code), RLC-IAMS3535, 0100 (for code version 1 00), 16
(number of read supported registers), 16 (number of writes supported
registers), 16 (number of registers available for GUID/ Scratch pad memory),
checksum of the string
The following is the HEX of the above (with unit address of 247):
<F7><11><14><52><4C><43><2D><49><41><4D><53><33><35><33><3
5><01><00><00><10><00><10><00><10><A5><F7>
SUPPORTED EXCEPTION CODES
01: Illegal Function
Issued whenever the requested function is not implemented in the unit
02: Illegal Data Address
Issued whenever an attempt is made to access a single register or coil that
does not exist (outside the implemented space) or to access a block of registers
or coils that falls completely outside the implemented space
03: Illegal Data Value
Issued when an attempt is made to read or write more registers or coils than
the unit can handle in one request
07: Negative Acknowledge
Issued when a write to coil or register is attempted with an invalid string
length
CHECKSUM ERRORS
1 Calibration checksum covers the E2 PROM that contains calibration values
for all ranges When a calibration checksum error occurs, coil 10 becomes a
1 (See Coils Table)
2 Parameter checksum covers the E2 PROM that contains the stored Holding
register settings When a parameter checksum error occurs, coil 9 becomes a
1 (See Coils Table)
3 All LEDs will flash as long as either error occurs
4 The alarms are disabled as long as either error occurs
5 Either error can be cleared or activated manually by writing to the appropriate
coil (This does not correct the reason for the error It may be necessary to
reconfigure or calibrate )
6 Both checksums are verified at power up
CALIBRATION
ADC (Internal)
1 Connect the signal source to proper IAMS terminals
2 Apply 0 V or 0 mA to self calibrate
3 To start calibration, enter <7777>HEX into Holding register 40026
4 To start ADC calibration, enter <0001>HEX into Holding register 40026
5 To end calibration, enter <0000>HEX if not continuing with voltage or
current calibration
Voltage or Current
1 Connect the signal source to proper IAMS terminals
2 Enter desired range to be calibrated into Holding register 40007
3 To start calibration, enter <7777>HEX into Holding register 40026
4 Apply 0 voltage or 0 current and enter <0002>HEX into Holding register
40026
5 Apply maximum limit of selected range and enter <0003>HEX into Holding
register 40026
6 Repeat all of steps 2, 4, and 5 for each range to be calibrated, changing the
source connecting to the proper IAMS terminals as needed
7 To end calibration, enter <0000>HEX into Holding register 40026

12
REGISTER
ADDRESS * REGISTER NAME LOW LIMIT†HIGH LIMIT†ACCESS COMMENTS
40001 ADC reading N/A N/A Read Only ADC (Analog to Digital Converter) reading of present input level.
40002 Process Value N/A N/A Read Only Process Value (with gain and offset) of present input level.
40003 Floating Point LO N/A N/A Read Only IEEE Standard 754 Floating Decimal Point, low order of Process Value. (Allows
32 bit accuracy for external monitoring.)
40004 Floating Point HI N/A N/A Read Only IEEE Standard 754 Floating Decimal Point, high order of Process Value. (Allows
32 bit accuracy for external monitoring.)
40005 Min. ADC Reference N/A N/A Read Only ADC reading at minimum input established during calibration.
40006 Max. ADC Reference N/A N/A Read Only ADC reading at maximum input established during calibration.
40007 Input Range 017 Read/ rite See Input Range Register Table.
40008 Filter Band 032000 Read/ rite See Filter Band explanation.
40009 Filter Response Time 01000 Read/ rite See Filter Response Time explanation (1 = 0.1 second).
40010 Gain Value -32000 32000 Read/ rite See Offset and Gain explanation (1 = 0.001).
40011 Offset Value -32000 32000 Read/ rite See Offset and Gain explanation.
40012 Alarm 2 Mode <0000> <0039> Read/ rite See Alarm 1 & 2 Mode Register Table.
40013 Setpoint 2 Value -32000 32000 Read/ rite Alarm 2 setpoint value based on Process Value.
40014 Alarm 2 Hysteresis 132000 Read/ rite Alarm 2 hysteresis value based on Process Value.
40015 Alarm 2 Delay 032000 Read/ rite Alarm 2 delay trip on time (1 = 1 second).
40016 Alarm 1 Mode <0000> <0034> Read/ rite See Alarm 1 & 2 Mode Register Table.
40017 Setpoint 1 Value -32000 32000 Read/ rite Alarm 1 setpoint value based on Process Value.
40018 Alarm 1 Hysteresis 132000 Read/ rite Alarm 1 hysteresis value based on Process Value.
40019 Alarm 1 Delay 032000 Read/ rite Alarm 1 delay trip on time (1 = 1 second).
40020 Transmit Delay 1255 Read/ rite Delay before serial transmission (1 = 1 msec). See Transmit Delay Explanation.
40021 Node (Unit) Address 1247 Read/ rite Node serial IAMS address.
40022 Error Coils <0000> <0003> Read/ rite Mirror of Coils 9-14. See Coil Table.
40023 Comm. Coils <0020> <00FF> Read/ rite Mirror of Coils 1-7. See Coil Table and Communication Table.
40024 Alarm 1 State 0 1 Read/ rite Alarm 1 state. (1 = on)
40025 Alarm 2 State 0 1 Read/ rite Alarm 2 state. (1 = on)
40026 Factory Calibration <0000> <7777> Read/ rite See Calibration explanation.
41001- 41010 Slave ID See FC17. See FC17. Read Only IAMS-3535, 0100 (ver. 1.00), 16 reads, 16 writes, 16 scratch. It is possible that
the version value is higher.
41101- 41116 GUID/Scratch <0000> <FFFF> Read/ rite This area is for the user to store any related information.
This register area does not affect IAMS operations.
COIL ADDRESS COIL NAME ACCESS COMMENTS
1Baud B0 Read/ rite See Communication Register and Coils Table.
2Baud B1 Read/ rite See Communication Register and Coils Table.
3Baud B2 Read/ rite See Communication Register and Coils Table.
4Parity B3 Read/ rite See Communication Register and Coils Table.
5Parity B4 Read/ rite See Communication Register and Coils Table.
6Data Bits B5 Read/ rite See Communication Register and Coils Table.
7Mode B6 Read/ rite See Communication Register and Coils Table.
8Change B7 Read/ rite “1” = change IAMS communications to above settings.
9P. Checksum Error Read/ rite “1” = Parameter checksum error, disables alarms, causes flashing LEDs.
10 C. Checksum Error Read/ rite “1” = Calibration checksum error, disables alarms, causes flashing LEDs.
11 AL 1 Over Range Read Only “1” = Alarm 1 Threshold over range, disables alarms, causes no LED indication.
12 AL 2 Over Range Read Only “1” = Alarm 2 Threshold over range, disables alarms, causes no LED indication.
13 ADC Over Range Read Only “1” = ADC over range, causes Process Value to be ±32002, disables alarms.
14 G/O Over Range Read Only “1” = Gain and Offset over range, causes Process Value to be ±32001.
15 Not used Read Only “0” always.
16 Not used Read Only “0” always.
REGISTER TABLE
The below limits are shown as Integers or HEX < > values Read and write functions can be performed in either Integers or HEX as long as the conversion was
done correctly Negative numbers are represented by two’s complement
COILS TABLE (COMMUNICATION AND ERRORS
* For Input Registers, replace the 4xxxx with a 3xxxx in the above register address. The 3xxxx are a mirror of the 4xxxx Holding Registers.
† An attempt to exceed a limit will set the register to its high or low limit value.
Coils 1-7 mirror register 40023 and Coils 9-14 mirror register 40022.

13
RANGE NUMBER SPAN/TYPE RANGE NUMBER SPAN/TYPE RANGE NUMBER SPAN/TYPE
00-20 mV 60-2 V 12 0-2 mA
10-50 mV 70-5 V 13 0-5 mA
20-100 mV 80-10 V 14 0-10 mA
30-200 mV 90-20 V 15 0-20 mA
40-500 mV 10 0-50 V 16 0-50 mA
50-1 V 11 0-100 V 17 0-100 mA
ALARM 1 (40012 & 2 (40016 MODE REGISTER TABLE
INPUT RANGE REGISTER (40007 TABLE
Examples:
Alarm 1 (40016):
Stand-by off, Latch on = 0 0 0 1 <1 >
Absolute Lo, Balanced = 0 0 1 0 < 2>
<1 2>
Alarm 2 (40012):
Stand-by on, Latch off = 0 0 1 0 <2 >
Band Outside = 1 0 0 1 < 9>
<2 9>
COMMUNICATIONS REGISTER (40023 AND COILS 1-8 TABLE
* hen reading register 40023, B7 will be a 0. hen writing (changing IAMS communications to the new setting), change B7 to a 1.
Mode Parity Baud Coil 8
B7*
Coil 7
B6
Coil 6
B5
Coil 5
B4
Coil 4
B3
Coil 3
B2
Coil 2
B1
Coil 1
B0
Coil 8 =0
HEX
Coil 8 =1
HEX
RTU 8N1,2 300 0 / 1 0100000<20> <A0>
RTU 8N1,2 600 0 / 1 0100001<21> <A1>
RTU 8N1,2 1200 0 / 1 0100010<22> <A2>
RTU 8N1,2 2400 0 / 1 0100011<23> <A3>
RTU 8N1,2 4800 0 / 1 0100100<24> <A4>
RTU 8N1,2 9600 0 / 1 0100101<25> <A5>
RTU 8N1,2 19200 0 / 1 0100110<26> <A6>
RTU 8N1,2 38400 0 / 1 0100111<27> <A7>
RTU 8E1 300 0 / 1 0101000<28> <A8>
RTU 8E1 600 0 / 1 0101001<29> <A9>
RTU 8E1 1200 0 / 1 0101010<2A> <AA>
RTU 8E1 2400 0 / 1 0101011<2B> <AB>
RTU 8E1 4800 0 / 1 0101100<2C> <AC>
RTU 8E1 9600 0 / 1 0101101<2D> <AD>
RTU 8E1 19200 0 / 1 0101110<2E> <AE>
RTU 8E1 38400 0 / 1 0101111<2F> <AF>
RTU 8O1 300 0 / 1 0111000<38> <B8>
RTU 8O1 600 0 / 1 0111001<39> <B9>
RTU 8O1 1200 0 / 1 0111010<3A> <BA>
RTU 8O1 2400 0 / 1 0111011<3B> <BB>
RTU 8O1 4800 0 / 1 0111100<3C> <BC>
RTU 8O1 9600 0 / 1 0111101<3D> <BD>
RTU 8O1 19200 0 / 1 0111110<3E> <BE>
RTU 8O1 38400 0 / 1 0111111<3F> <BF>
Latched
O =Auto
2nd Nibble
HEX
Stand By B7 B6 B5
off off 0 0 0 0 <0 >
off on 0 0 0 1 <1 >
on off 0 0 1 0 <2 >
on on 0 0 1 1 <3 >
B4
< 9>100129 Band Outside
< 6>011026Deviation Lo
< 5>101025Deviation Hi
< 4>0010214Absolute Lo, unbalanced
< 3>1100213Absolute Hi, unbalanced
< 2>0100212Absolute Lo, balanced
< 1>1000211Absolute Hi, balanced
< 0>0000210Manual
1st Nibble
HEX
B0B1B2B3ALARMSMODEACTION
See Setpoint Alarm Figures, Page 6, for illustrations of alarm operation.

14
COMMUNICATIONS REGISTER (40023 AND COILS 1-8 TABLE (continued
Mode Parity Baud Coil 8
B7 *
Coil 7
B6
Coil 6
B5
Coil 5
B4
Coil 4
B3
Coil 3
B2
Coil 2
B1
Coil 1
B0
Coil 8 =0
HEX
Coil 8 =1
HEX
ASCII 7N2 300 0 / 1 1 0 0 0 0 0 0 <40> <C0>
ASCII 7N2 600 0 / 1 1 0 0 0 0 0 1 <41> <C1>
ASCII 7N2 1200 0 / 1 1 0 0 0 0 1 0 <42> <C2>
ASCII 7N2 2400 0 / 1 1 0 0 0 0 1 1 <43> <C3>
ASCII 7N2 4800 0 / 1 1 0 0 0 1 0 0 <44> <C4>
ASCII 7N2 9600 0 / 1 1 0 0 0 1 0 1 <45> <C5>
ASCII 7N2 19200 0 / 1 1 0 0 0 1 1 0 <46> <C6>
ASCII 7N2 38400 0 / 1 1 0 0 0 1 1 1 <47> <C7>
ASCII 7E1 300 0 / 1 1 0 0 1 0 0 0 <48> <C8>
ASCII 7E1 600 0 / 1 1 0 0 1 0 0 1 <49> <C9>
ASCII 7E1 1200 0 / 1 1 0 0 1 0 1 0 <4A> <CA>
ASCII 7E1 2400 0 / 1 1 0 0 1 0 1 1 <4B> <CB>
ASCII 7E1 4800 0 / 1 1 0 0 1 1 0 0 <4C> <CC>
ASCII 7E1 9600 0 / 1 1 0 0 1 1 0 1 <4D> <CD>
ASCII 7E1 19200 0 / 1 1 0 0 1 1 1 0 <4E> <CE>
ASCII 7E1 38400 0 / 1 1 0 0 1 1 1 1 <4F> <CF>
ASCII 7O1 300 0 / 1 1 0 1 1 0 0 0 <58> <D8>
ASCII 7O1 600 0 / 1 1 0 1 1 0 0 1 <59> <D9>
ASCII 7O1 1200 0 / 1 1 0 1 1 0 1 0 <5A> <DA>
ASCII 7O1 2400 0 / 1 1 0 1 1 0 1 1 <5B> <DB>
ASCII 7O1 4800 0 / 1 1 0 1 1 1 0 0 <5C> <DC>
ASCII 7O1 9600 0 / 1 1 0 1 1 1 0 1 <5D> <DD>
ASCII 7O1 19200 0 / 1 1 0 1 1 1 1 0 <5E> <DE>
ASCII 7O1 38400 0 / 1 1 0 1 1 1 1 1 <5F> <DF>
ASCII 8N1 300 0 / 1 1 1 0 0 0 0 0 <60> <E0>
ASCII 8N1 600 0 / 1 1 1 0 0 0 0 1 <61> <E1>
ASCII 8N1 1200 0 / 1 1 1 0 0 0 1 0 <62> <E2>
ASCII 8N1 2400 0 / 1 1 1 0 0 0 1 1 <63> <E3>
ASCII 8N1 4800 0 / 1 1 1 0 0 1 0 0 <64> <E4>
ASCII 8N1 9600 0 / 1 1 1 0 0 1 0 1 <65> <E5>
ASCII 8N1 19200 0 / 1 1 1 0 0 1 1 0 <66> <E6>
ASCII 8N1 38400 0 / 1 1 1 0 0 1 1 1 <67> <E7>
ASCII 8E1 300 0 / 1 1 1 0 1 0 0 0 <68> <E8>
ASCII 8E1 600 0 / 1 1 1 0 1 0 0 1 <69> <E9>
ASCII 8E1 1200 0 / 1 1 1 0 1 0 1 0 <6A> <EA>
ASCII 8E1 2400 0 / 1 1 1 0 1 0 1 1 <6B> <EB>
ASCII 8E1 4800 0 / 1 1 1 0 1 1 0 0 <6C> <EC>
ASCII 8E1 9600 0 / 1 1 1 0 1 1 0 1 <6D> <ED>
ASCII 8E1 19200 0 / 1 1 1 0 1 1 1 0 <6E> <EE>
ASCII 8E1 38400 0 / 1 1 1 0 1 1 1 1 <6F> <EF>
ASCII 8O1 300 0 / 1 1 1 1 1 0 0 0 <78> <F8>
ASCII 8O1 600 0 / 1 1 1 1 1 0 0 1 <79> <F9>
ASCII 8O1 1200 0 / 1 1 1 1 1 0 1 0 <7A> <FA>
ASCII 8O1 2400 0 / 1 1 1 1 1 0 1 1 <7B> <FB>
ASCII 8O1 4800 0 / 1 1 1 1 1 1 0 0 <7C> <FC>
ASCII 8O1 9600 0 / 1 1 1 1 1 1 0 1 <7D> <FD>
ASCII 8O1 19200 0 / 1 1 1 1 1 1 1 0 <7E> <FE>
ASCII 8O1 38400 0 / 1 1 1 1 1 1 1 1 <7F> <FF>
* hen reading register 40023, B7 will be a 0. hen writing (changing IAMS communications to the new setting), change B7 to a 1.

15
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Red Lion Controls
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