Control Microsystems SCADAPack 32P User manual

SCADAPack 32P Controller
Hardware Manual
CONTROL
MICROSYSTEMS
SCADA products... for the distance
48 Steacie Drive Telephone: [phone]
Kanata, Ontario Facsimile: 613-591-1022
K2K 2A9 Technical Support: 888-226-6876
Canada 888-2CONTROL

SCADAPack 32P Controller Hardware Manual
©2000 - 2006 Control Microsystems Inc.
All rights reserved.
Printed in Canada.
Trademarks
TeleSAFE, TelePACE, SmartWIRE, SCADAPack, TeleSAFE Micro16 and
TeleBUS are registered trademarks of Control Microsystems Inc.
All other product names are copyright and registered trademarks or trade names
of their respective owners.
Material used in the User and Reference manual section titled SCADAServer
OLE Automation Reference is distributed under license from the OPC
Foundation.
SCADAPack 32P Controller Hardware Manual
May 26, 2006
1

Table of Contents
1OVERVIEW.................................................................................................... 5
2IMPORTANT SAFETY INFORMATION ........................................................ 6
3INSTALLATION............................................................................................. 7
3.1 Field Wiring Connections ...............................................................................7
3.1.1 5232 Controller Board Field Wiring Connectors........................................7
3.2 Power Supply.................................................................................................8
3.2.1 Controller Board Power Supply.................................................................8
3.2.2 Power Supply Input Connections..............................................................8
3.2.3 Recommended AC Power Supply Configuration......................................9
3.2.4 Recommended DC Power Supply Configuration......................................9
3.2.5 Recommended 24VDC Battery Supply Configuration ............................10
3.2.6 Recommended 5103 Power Supply Configuration................................. 10
3.2.7 System Grounding.................................................................................. 11
3.3 Internal Analog Inputs..................................................................................11
3.4 Digital /Counter Inputs..................................................................................12
3.5 Interrupt Input............................................................................................... 13
3.6 Status Output............................................................................................... 13
4SERIAL COMMUNICATION........................................................................ 15
4.1 RS-232 Serial Communications Ports.......................................................... 15
4.1.1 COM1 RS-232 Serial Port.......................................................................15
4.1.2 COM2 RS-232 Serial Port.......................................................................16
4.1.3 COM4 RS-232 Serial Port.......................................................................16
4.1.4 RJ-45 Modular Connector for RS-232 ....................................................17
4.2 RS-232 Wiring Examples.............................................................................18
4.2.1 DTE to DTE without Handshaking..........................................................18
4.2.2 DTE to DTE with Handshaking...............................................................19
4.2.3 DTE to DCE with Handshaking...............................................................19
4.3 RS-232 Cables............................................................................................. 20
4.3.1 RJ-45 to DE-9S DTE ..............................................................................20
4.3.2 RJ-45 to DE-9P DCE.............................................................................. 20
4.4 RS-485 Serial Communication Port .............................................................20
SCADAPack 32P Controller Hardware Manual
May 26, 2006
2

4.4.1 RJ-45 Modular Connector for RS-485 ....................................................21
4.4.2 RS-485 Bias Resistors............................................................................21
4.4.3 RS-485 Termination Resistors................................................................22
4.5 RS-485 Wiring Examples.............................................................................22
4.5.1 Four wire mode....................................................................................... 22
4.5.2 Two wire mode ....................................................................................... 23
4.6 RS-485 Cable............................................................................................... 24
5ETHERNET COMMUNICATION.................................................................. 26
5.1 LAN Port Settings......................................................................................... 26
5.1.1 TCP/IP Settings...................................................................................... 26
5.1.2 Modbus/TCP Settings............................................................................. 26
5.1.3 RJ-45 Modular Connector for Ethernet...................................................27
6OPERATION................................................................................................ 29
6.1 Run Mode .................................................................................................... 29
6.2 Service Mode............................................................................................... 29
6.3 Cold Boot Mode ...........................................................................................30
6.4 SCADAPack 32P LED Indicators................................................................. 30
6.5 LED Power Control ...................................................................................... 31
6.6 Status LED and Output................................................................................31
6.6.1 I/O Module Error Indication..................................................................... 32
6.6.2 Register Assignment Checksum Error.................................................... 32
6.6.3 Too Many I/O Operations Requested Error............................................ 32
6.7 Configuration Switches ................................................................................ 33
6.7.1 Digital Input Filters..................................................................................33
6.7.2 Line Frequency Selection ....................................................................... 34
7MAINTENANCE........................................................................................... 35
7.1 Fuses...........................................................................................................35
7.2 Lithium Battery.............................................................................................35
7.2.1 Battery Replacement Procedure............................................................. 35
8SPECIFICATIONS....................................................................................... 37
8.1 General........................................................................................................ 37
8.2 SCADAPack 32P Controller......................................................................... 37
SCADAPack 32P Controller Hardware Manual
May 26, 2006
3

8.3 Communications ..........................................................................................37
8.4 Visual Indicators........................................................................................... 38
8.5 Power Supply...............................................................................................38
8.6 I/O Capacity .................................................................................................39
8.7 Digital Inputs ................................................................................................39
8.8 Digital Outputs.............................................................................................. 39
8.9 Approvals and Certifications......................................................................... 39
Index of Figures
Figure 1: SCADAPack 32P..................................................................................................5
Figure 2: 5232 Controller Module ........................................................................................8
SCADAPack 32P Controller Hardware Manual
May 26, 2006
4

1 Overview
The SCADAPack 32P consists of a 5232 Controller board, see Figure 1: SCADAPack 32P.
Application programs for the controller can be written in either TelePACE Ladder Logic, or
optionally IEC61131, and C/C++ language.
The 5232 Controller provides an integrated power supply, three digital/counter inputs, an interrupt
input and a status output. The 10-BaseT Ethernet port and three serial communication ports enable
connection to a large variety of communication networks. Two of the serial communication ports are
RS-232 and the third is configurable for RS-232 or RS-485.
The RS-232 serial communication ports on the controller board support half-duplex and full-duplex
communication. They support RTS/CTS hardware handshaking for connection to modems and radio
modems. The RS-232 and RS-485 ports operate at baud rates from 300 baud to 38400 baud.
Using 5000 Series I/O modules can expand the I/O capacity of SCADAPack 32P Controllers. A
maximum of forty 5000 Series I/O modules may be connected for an expansion of up to 512 digital
outputs, 512 digital inputs, 128 analog inputs, 32 counters and 32 analog outputs.
The 5232 Controller memory has 8 Mbytes SDRAM, 4 Mbytes flash ROM, and 1 Mbyte CMOS
SRAM. The CMOS SRAM is non-volatile (battery backed.). A real time clock calendar provides for
time of day operations and alarms. A hardware watchdog timer protects against application program
failures.
Low power applications also benefit from the SCADAPack 32P ability to enable and disable status
LED’s on all modules connected to the 5000 Series I/O bus including the controller board.
Figure 1: SCADAPack 32P
SCADAPack 32P Controller Hardware Manual
May 26, 2006
5

2 Important Safety Information
Power, input and output (i/o) wiring must be in accordance with Class I, Division 2 wiring methods
Article 501-4 (b) of the National Electrical Code, NFPA 70 for installations in the U.S., or as
specified in Section 18-1J2 of the Canadian Electrical Code for installations within Canada and in
accordance with the authority having jurisdiction.
WARNING !
EXPLOSION HAZARD - SUBSTITUTION OF COMPONENTS MAY
IMPAIR SUITABILITY FOR CLASS 1, DIVISION 2.
WARNING !
EXPLOSION HAZARD – WHEN IN HAZARDOUS LOCATIONS, TURN
OFF POWER BEFORE REPLACING OR WIRING MODULES.
WARNING !
EXPLOSION HAZARD - DO NOT DISCONNECT EQUIPMENT
UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS
KNOWN TO BE NONHAZARDOUS.
SCADAPack 32P Controller Hardware Manual
May 26, 2006
6

3 Installation
The installation of SCADAPack 32P controllers requires mounting the SCADAPack 32P controller
on the 7.5mm by 35mm DIN rail and connecting the SCADAPack controller to the system I/O Bus.
Refer to the System Configuration Guide for complete information on system layout, I/O Bus cable
routing and SCADAPack 32P controller installation.
3.1 Field Wiring Connections
SCADAPack 32P controllers use screw termination style connectors for termination of field wiring.
These connectors can accommodate solid or stranded wires from 22 to 12 AWG.
The termination connectors fit over pins on the 5232 controller board. The connectors are removable
allowing replacement of the SCADAPack 32P Controller without disturbing the field wiring. Leave
enough slack in the field wiring for the connector to be removed.
CAUTION: Remove power before servicing unit.
To remove the termination connector:
• Pull the connector upward from the board. Apply even pressure to both ends of the connector.
To install the termination connector:
• Line up the pins on the module with the holes in the connector. Make sure all the pins line up
properly.
• Push the connector onto the pins. Apply even pressure to both ends of the connector.
3.1.1 5232 Controller Board Field Wiring Connectors
The 5232 Controller board has six termination connectors for the connection of field wiring. Refer to
the diagram Figure 2: 5232 Controller Module for field wiring connector locations.
Primary power input connections; output power connection and ground connections are wired to a
six-pole connector labeled P3. Refer to section 3.2.1-Controller Board Power Supply for more
information on these connections.
The three digital/counter inputs (DIN/Counters), interrupt input/counter (INT/Cntr) and status output
(STATUS) are wired to an eight-pole connector labeled P4. Refer to section 3.4-Digital /Counter
Inputs, 3.5-Interrupt Input and 3.6-Status Output for more information on these connections.
Each of the three serial communication ports is wired to black 8 pin modular RJ-45 connectors.
COM1 connector is labeled P6, COM2 connector is labeled P7, and COM4 connector is labeled P8.
Refer to section 4-Serial Communication for more information on serial communication
connections.
The Ethernet LAN Port is wired to a gray 8 pin modular RJ-45connector labeled P5. Refer to section
5-Ethernet Communication for more information on Ethernet connections.
SCADAPack 32P Controller Hardware Manual
May 26, 2006
7

0 1 2 COM
DIN/COUNTER
+ –
STA TU S
+ –
INT
AC/DC
PWR IN + –
DCPW
R
5V LED
S
STA
T
RUN FORCE IN
T
CTR1 CTR2CTR0 LAN LIN
K
TX RX CTS DCD TX RX CT
S
DCD T
X
R
X
CTS DCD
Power Supply and CPU Interupt and Counters COM1 COM4
LAN COM2
SW 1
P11
F2
F1
J5
TX
RX
RS485 RS232
J7
J8
J9 J10
COM Port
J4
P1 P2
BT1
P6
COM1
RS-232/485
P7
COM2
RS-232
P8
COM4
RS-232
P5
LAN
LED POWER
P4
P3
P11
P9 J2
J3
Figure 2: 5232 Controller Module
3.2 Power Supply
The SCADAPack 32P controller is primarily a DC input powered device but can be powered with
16Vac under some conditions. The power supply requirements for the 5232 Controller board are
each explained in the following sections.
NOTE: Voltages referred to as Vrms (or Vac) indicate AC power. Voltages referred to as V (or
Vdc) indicate DC power.
3.2.1 Controller Board Power Supply
The 5232 Controller board can be powered from a 12Vdc to 24Vdc power source applied to the DC
PWR input or a 16Vac power source applied to the AC PWR IN input. With input power applied the
5232 Controller board power supply provides an internal 5V output to power 5000 Series modules
through the inter module cable (IMC).
The 5V supply has a 1.3A output capacity of which 500mA is required by the 5232 Controller board.
The remaining capacity, 800mA, is used to power 5000 Series modules connected through the IMC
cable.
When the 5232 Controller board is powered with 16Vac power applied to the AC PWR IN input a
limited amount of 24Vdc power is provided on the DC PWR terminals. The amount of 24Vdc power
available is dependent on the amount of 5V output power used in the system. With a 5Vdc output
power of 500mA there is 300mA is available and this value is derated linearly to 100mA with a
5Vdc output power of 1.3A.
3.2.2 Power Supply Input Connections
Input power is connected to the SCADAPack 32P controller in one of the following ways:
• A 16Vac source connects to the AC PWR IN terminals on the 5232 Controller board. See section
3.2.3-Recommended AC Power Supply Configuration for an example of using a 16Vac
transformer to power the SCADAPack 32P controller.
SCADAPack 32P Controller Hardware Manual
May 26, 2006
8

• An 11 to 24Vdc source connects to the DC PWR terminals on the 5232 Controller board. See
section 3.2.4-Recommended DC Power Supply Configuration for an example of using a DC
power source.
• An 11 to 24Vdc high current capacity source, such as batteries, connects to the AC PWR IN and
DC PWR IN terminals on the 5232 Controller Board. See section 3.2.5-Recommended 24VDC
Battery Supply Configuration for a wiring example.
• A 5103 UPS Power Supply supplies 5Vdc to the controller board through the IMC cable and
supplies 24Vdc through the 24Vdc output. See section 3.2.6-Recommended 5103 Power Supply
Configuration for an example of using the 5103 UPS Power Supply.
CAUTION: Power can be applied to either the AC/DC power input OR the DC power input of
the controller module. DO NOT apply power to both inputs. Damage to the power
supply may result.
3.2.3 Recommended AC Power Supply Configuration
This configuration uses a single Class 2 transformer to power the SCADAPack 32P. 24V are
available on the controller module connector P3. They are used to power the analog circuitry for the
analog input circuits on additional 5000 Series Analog I/O modules.
AC/DC
PWR IN DCPWR + –
120
Vrm
s
16 Vrm
s
123456
Class 2
Transformer
P3
+ 24 V for transmitters
SCADAPack 32P
3.2.4 Recommended DC Power Supply Configuration
This configuration uses a single power supply to power the SCADAPack 32P. A 12-24VDC source
is applied to the DC PWR inputs (+) and (-).
The DC power supply input inrush current can be reduced if required. Some DC power supplies will
go into current limit when starting up into a high inrush current load. Battery operated systems have
high current capabilities that may cause nuisance fuse blowing. If either of these situations are
present in an installation, it possible to reduce the DC power supply inrush current by cutting link J3.
J3 is located on the controller next to the power input connector and fuses. This link may be cut in
DC applications only.
SCADAPack 32P Controller Hardware Manual
May 26, 2006
9

AC/DC
PWR IN DCPWR + –
123456
P3
SCADAPack 32P
+
12 - 24Vdc
Power Supply
–
3.2.5 Recommended 24VDC Battery Supply Configuration
This configuration uses a high capacity source, such as a battery, to power the SCADAPack 32P. An
11 – 24VDC battery source is applied with the positive to the AC PWR IN terminal 3 and the
negative to DC PWR (-).
The DC power supply input inrush current can be reduced if required. Battery operated systems have
high current capabilities that may cause nuisance fuse blowing. It possible to reduce the DC power
supply inrush current by cutting link J3. J3 is located on the controller next to the power input
connector and fuses. This link may be cut in DC applications only.
AC/DC
PWR IN DCPWR + –
123456
P3
SCADAPack 32P
24V Battery
Supply.
3.2.6 Recommended 5103 Power Supply Configuration
When additional power is required by the system, 5000 Series 5103 power supplies can be used in
combination with the SCADAPack 32P controllers. Refer to the System Configuration Guide for
more information.
The 5103 power supplies can be connected anywhere downstream (to the right) of the controller.
They will supply power to the modules downstream of them.
The 5103 power supply may also be connected upstream (to the left) of any SCADAPack 32P
Controller, but only if no power is applied to the power inputs of the SCADAPack 32P.
SCADAPack 32P Controller Hardware Manual
May 26, 2006
10

This configuration uses a 5103 Power Supply module to power a SCADAPack 32P. The 5103 power
supply provides a 5V output to power the SCADAPack 32P and 5000 Series modules through the
IMC cables.
Note that no connection is made to the AC/DC PWR IN or DC PWR terminals on the SCADAPack
32P.
AC/DC
PWR IN DCPWR + –
123456
P3
SCADAPack 32P
12 3 4 5 910
P3
5103 Power Supply
120
Vrm
s
24 Vrms
Class 2
Transformer
AC/DC + -
BATT + -
24V
Optional 12 Volt
Gel Cel Battery
3.2.7 System Grounding
In most applications, it is desirable to ground the system by connecting the system power supply
common, to the chassis or panel ground.
On the SCADAPack 32P, the –side of both the 5V and the 24V supplies are connected to the
enclosure. Pins 1 and 2 on P3 are connected internally to the enclosure.
3.3 Internal Analog Inputs
The SCADAPack 32P Controller has two internal analog inputs. These internal analog inputs are
accessed form the user application program.
The ambient temperature input measures the temperature at the controller circuit board. It is useful
for measuring the operating environment of the controller and returns an integer value in the range –
40 to 75 deg C or –40 to 167 deg F. The temperature reading represents temperatures in the range -
40°C to 75°C or -40°F to 167°F. Temperatures outside this range cannot be measured.
• For TelePACE applications use the AIN Controller Temperature register assignment to read the
ambient temperature in degrees C and degrees F.
• For ISaGRAF applications use the aintemp I/O connection to read the ambient temperature in
degrees C and degrees F.
The lithium battery input measures the voltage of the battery that maintains the non-volatile RAM in
the controller. The reading returned from this input is in the range from 0 – 5000 representing the
battery voltage in mV. It is useful in determining if the battery needs replacement. The 3.6V lithium
battery will return a typical value of 3600 or 3700. A reading less than 3000 (3.0V) indicates that the
lithium battery requires replacement.
SCADAPack 32P Controller Hardware Manual
May 26, 2006
11

• For TelePACE applications use the AIN Controller RAM Battery V register assignment to read
the lithium battery voltage.
• For ISaGRAF applications use the ainbatt I/O connection to read the lithium battery voltage.
3.4 Digital /Counter Inputs
The SCADAPack 32P has three Digital / Counter inputs. These inputs are labeled DIN\Counter 0, 1
and 2 on the P4 terminal connector. These inputs operate as AC or DC digital inputs or as counter
inputs.
• For DC inputs the maximum input voltage is 30V and the minimum voltage to turn the input ON
is 10V.
• For AC inputs the maximum input voltage is 24Vrms and the minimum voltage to turn the input
ON is 10Vrms.
• For counter inputs the maximum frequency is 5KHz with the filters off.
The DIN/Counter inputs can be used as both digital inputs and counter inputs in an application
program.
• For TelePACE applications use the CNTR Controller Counter Inputs register assignment to
read the DIN/Counter inputs as counters and the DIN Controller Digital Inputs register
assignment to read the DIN/Counter inputs as digital inputs
• For ISaGRAF applications use the cntrCtrl I/O connection to read the DIN/Counter inputs as
counters and the dinCtrl I/O connection to read the DIN/Counter inputs as digital inputs.
Each of the three digital / counter (DIN/Counters) inputs on the SCADAPack 32P controller has a
switch selectable filter, which limits the maximum input frequency. Filtering limits the maximum
digital input or counter frequency to approximately 30Hz. Refer to section 6.7.1-Digital Input
Filters for filter selection information.
• Use a filter for 50 or 60Hz digital inputs and for low speed counting applications that experience
problems due to contact bounce.
• Do not use filtering for high speed counting applications.
An example of wiring each type of input is shown in the diagram below.
Connection Example:
SW1 Filter 0 is ON to debounce contacts.
SW1 Filter 1 isON to filter AC.
SW1 Filter 2 isOPEN for high speed counting.
34
0
+
24V
–
DIN/Counter
2
15678
P4 COM21
16Vrms
+
Pulse Output
–
SW 1
2
1
2
3
4
0
1
not used
Options
Filters
SCADAPack 32P Controller Hardware Manual
May 26, 2006
12

3.5 Interrupt Input
The SCADAPack 32P has one Interrupt digital input. This input is labeled DINT on the P4 terminal
connector. This input operates as a DC digital input or as a counter input.
• For DC input the maximum input voltage is 28V and the minimum voltage to turn the input ON
is 2.5V.
• For counter input the maximum frequency is 500Hz.
The INT input can be used as both a digital input and as a counter in an application program.
• For TelePACE applications use the CNTR Controller Interrupt Input register assignment to
read the INT/Cntr input as a counter and the DIN Controller Interrupt Input register assignment
to read the INT/Cntr input as a digital input.
• For ISaGRAF applications use the cntrint I/O connection to read the INT/Cntr input as a
counter input and the dinint I/O connection to read the INT/Cntr input as a digital input.
The diagram below shows how to wire this input.
34
+
+
2.5-28V
–
INT
21 5 6 7 8
P4
—
3.6 Status Output
The SCADAPack 32P status output indicates an alarm condition to an external device. The output is
ON (capable of conducting current) during normal operation. The output is OFF (high impedance)
during the following conditions:
• Power failure.
• SCADAPack 32P RESET.
• Application program defined conditions.
The status output is an optically isolated transistor. The polarity of the output must be observed. The
output current must be limited to 60mA during the ON condition. The output voltage must be limited
to 30V during the OFF condition.
SCADAPack 32P Controller Hardware Manual
May 26, 2006
13

A typical application of this output is shown in the following diagram. The output energizes a relay.
The normally closed contacts of this relay are used to activate an alarm. The relay in this application
has a 24V coil with greater than 400Ωresistance.
Relay Coil Specifications:
•24V
•> 400 ohms
•
< 60m
A
34
STATU S
+ –
NCNO COM
+
24 V
–
NCALARM CONTACTS:
closed during power
failuresand fault
conditions.
21 5 6 7 8
P4
SCADAPack 32P Controller Hardware Manual
May 26, 2006
14

4 Serial Communication
The SCADAPack 32P controller is equipped with three serial communication ports. All three serial
communication ports support RS-232 serial communication and one port supports both RS-232 and
RS-485 serial communication.
Serial ports on the SCADAPack 32P controller are designated COM1, COM2 and COM4. Refer to
Figure 2: 5232 Controller Module section for the location of the serial ports.
4.1 RS-232 Serial Communications Ports
All RS-232 wiring must use shielded cable. The shield should be connected to chassis ground at one
point. The DE-9 connector shell is a good ground point. Failure to properly shield the cable may
result in the installation not complying with FCC or DOC radio interference regulations.
4.1.1 COM1 RS-232 Serial Port
Serial port COM1 may be configured as an RS-232 or RS-485 serial communication port.
• A jumper must be installed on J10 to operate COM1 in RS-232 mode.
• A jumper must be installed on J9 to operate COM1 in RS-485 mode.
Refer to Figure 2: 5232 Controller Module for the location of COM1 and jumpers J9 and J10.
For information on using COM1 as a RS-485 serial port refer to section 4.4-RS-485 Serial
Communication Port.
Connections to COM1 are made through a RJ-45 modular connector. The wiring and pin
connections for this connector are described in section 4.1.4-RJ-45 Modular Connector for RS-232.
The following table shows the serial and protocol communication parameters supported by COM1.
These parameters are set from TelePACE, ISaGRAF Workbench or from an application program
running in the SCADAPack 32P controller. Default values are set when a Cold Boot or Service Boot
is performed on the SCADAPack 32P controller.
Parameter Supported Values
Baud Rate 300, 600, 1200, 2400, 4800, 9600, 19200, 38400,
57600 and 115200.
Default: 9600
Duplex Full or Half
Default: Full
Parity Odd, None or Even
Default: None
Data Bits 7 or 8 Bits
Default: 8 Bits
Stop Bits 1 or 2 Bits
Default: 1 Bit
Receive Flow Control ModbusRTU or None
Default: ModbusRTU
Transmit Flow Control Ignore CTS or None
Default: None
Station 1 to 65534
Default: 1
SCADAPack 32P Controller Hardware Manual
May 26, 2006
15

Parameter Supported Values
Protocol None, Modbus RTU or Modbus ASCII
Default: Modbus RTU
Addressing Mode Standard or Extended
Default: Standard
4.1.2 COM2 RS-232 Serial Port
Connections to COM2 are made through a RJ-45 modular connector. The wiring and pin
connections for this connector are described in section 4.1.4-RJ-45 Modular Connector for RS-232.
Refer to section 3.1- Field Wiring Connections for the location of COM2 on the SCADAPack 32P.
The following table shows the serial and protocol communication parameters supported by COM2.
These parameters are set from TelePACE, ISaGRAF Workbench or from an application program
running in the SCADAPack 32P controller. Default values are set when a Cold Boot or Service Boot
is performed on the SCADAPack 32P controller.
Parameter Supported Values
Baud Rate 300, 600, 1200, 2400, 4800, 9600, 19200, 38400,
57600 and 115200.
Default: 9600
Duplex Full or Half
Default: Full
Parity Odd, None or Even
Default: None
Data Bits 7 or 8 Bits
Default: 8 Bits
Stop Bits 1 or 2 Bits
Default: 1 Bit
Receive Flow Control ModbusRTU or None
Default: ModbusRTU
Transmit Flow Control Ignore CTS or None
Default: None
Station 1 to 65534
Default: 1
Protocol None, Modbus RTU or Modbus ASCII
Default: Modbus RTU
Addressing Mode Standard or Extended
Default: Standard
4.1.3 COM4 RS-232 Serial Port
Connections to COM4 are made through a RJ-45 modular connector. The wiring and pin
connections for this connector are described in section 4.1.4-RJ-45 Modular Connector for RS-232.
Refer to section 3.1- Field Wiring Connections for the location of COM4 on the SCADAPack 32P.
The following table shows the serial and protocol communication parameters supported by COM4.
These parameters are set from TelePACE, ISaGRAF Workbench or from an application program
running in the SCADAPack 32P controller. Default values are set when a Cold Boot or Service Boot
is performed on the SCADAPack 32P controller.
SCADAPack 32P Controller Hardware Manual
May 26, 2006
16

Parameter Supported Values
Baud Rate 300, 600, 1200, 2400, 4800, 9600, 19200, 38400,
57600 and 115200.
Default: 9600
Duplex Full or Half
Default: Full
Parity Odd, None or Even
Default: None
Data Bits 7 or 8 Bits
Default: 8 Bits
Stop Bits 1 or 2 Bits
Default: 1 Bit
Receive Flow Control ModbusRTU or None
Default: ModbusRTU
Transmit Flow Control Ignore CTS or None
Default: None
Station 1 to 65534
Default: 1
Protocol None, Modbus RTU or Modbus ASCII
Default: Modbus RTU
Addressing Mode Standard or Extended
Default: Standard
4.1.4 RJ-45 Modular Connector for RS-232
Serial communication ports COM1, COM2 and COM4 are located on the SCADAPack 32P
SCADAPack 32P. These are RS-232 serial ports using a 8-pin female RJ-45 connectors configured
as Data Terminal Equipment (DTE). The recommended specification for RS-232 cable length is a
maximum of 50 feet or 15.2 meters. Shielded cable must be used and the shield should be connected
to chassis ground at one end.
The following diagram shows the pin connections for the RS-232 (RJ-45) port connector for COM1,
COM2 and COM4.
RJ-45 Modular Jack
1. +5V
2. DCD
3. DTR
4. GND
5. RxD
6. TxD
7. CTS
8. RTS
21 876543
Notes:
• +5V is only available on Pin 1 when a jumper is installed on J4. Refer to section 3.1- Field
Wiring Connections for the location of J4.
• Serial port COM1 may be configured as RS-232 or RS-485. A jumper must be installed on J10
to operate COM1 in RS-232 mode. Refer to section 3.1- Field Wiring Connections for the
location of J10.
SCADAPack 32P Controller Hardware Manual
May 26, 2006
17

The following table provides a description of the function of each pin of the RJ-45 connector. In this
table a MARK level is a voltage of +3V or greater and a SPACE level is a voltage of –3V or less.
Pin Function Description
1 5V
(Output) This pin can be connected to the 5V power supply by installing a jumper at J4 on the SCADAPack controller board.
2 DCD
(Input) The DCD led is on for a MARK level.
3 DTR
(Output) This pin is normally at a MARK level.
This pin is at a SPACE level when DTR is de-asserted.
4 GND This pin is connected to the system ground.
5 RxD
(Input) The level is SPACE on standby and MARK for received data.
The LED is lit for a MARK level.
6 TxD
(Output) The level is SPACE on standby and MARK for transmitted data.
The LED is lit for a MARK level.
7 CTS
(Input) This level must be a MARK for the communication port to transmit data. When the attached device does not provide this
signal, the controller keeps the line at a MARK.
When the attached device does provide this signal, it must set
CTS to MARK to allow the controller to transmit data.
8 RTS
(Output) This pin is a MARK if full-duplex operation is selected for the port.
This pin is set to a MARK just before and during transmission of
data if half-duplex operation is selected.
This pin is set to a SPACE when no data is being transmitted.
4.2 RS-232 Wiring Examples
4.2.1 DTE to DTE without Handshaking
There are several methods for wiring the RS-232 COM port to DTE (Data Terminal Equipment) and
DCE (Data Communications Equipment) devices. The simplest connection requires only 3 wires:
RxD, TxD and signal ground. The following diagram shows a common RS-232 COM port to DTE
device.
RS-232 COM port (DTE) DTE
DCD
RxD
TxD
DT
R
GND
RT
S
CT
S
+5V
DCD
RxD
TxD
DTR
GND
RTS
CTS
See device
specification
s
for pin number
s
SCADAPack 32P Controller Hardware Manual
May 26, 2006
18

4.2.2 DTE to DTE with Handshaking
Some DTE devices may require hardware handshaking lines. The most common are the CTS and
RTS lines. Less common are the DTR and DCD lines. The controller does not require these lines.
Refer to the specifications of the external device for exact requirements. The following diagram
shows a common connection of an RS-232 COM port with a DTE device requiring handshaking
lines.
RS-232 COM port (DTE) DTE
DCD
RxD
TxD
DT
R
GND
RT
S
CT
S
+5V
DCD
RxD
TxD
DTR
GND
RTS
CTS
See dev i c
e
specification
s
for pin number
s
4.2.3 DTE to DCE with Handshaking
DCE devices require different wiring. The handshaking lines must be connected in most cases. Note
that many DCE devices are half duplex. Select half-duplex operation with these devices. The
diagram below shows common connection of a SCADAPack with a DCE device requiring
handshaking lines.
RS-232 COM port (DTE) DCE
DCD
RxD
TxD
DT
R
GND
RT
S
CT
S
+5V
DCD
RxD
TxD
DTR
GND
RTS
CTS
See device
specification
s
for pin number
s
SCADAPack 32P Controller Hardware Manual
May 26, 2006
19