Seneca Z-4RTD2 User manual

Page 1
MI002621
SENECA s.r.l.
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authorized. Contents of present documentation refers to products and technologies described in it. Though we strive for
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documentation is anyhow subjected to periodical revision. If you have any questions don’t hesitate to contact our
structure or to write us to e-mail addresses as above mentioned.
USER MANUAL
Z-4RTD2

USER MANUAL – Z-4RTD-2
2
Seneca Z-PC Line module: Z-4RTD-2
The Z-4RTD-2 module acquires up to 4 RTD signals (through 4 inputs regardless and isolated
with each other) e it converts them it to a temperature or resistance measure.
General characteristics
It’s possible to choose if the input is RTD-type: PT100, NI100, PT500, PT1000
It’s possible to choose the RTD-measure type: temperature (°C) or resistance () (for each
input)
It’s possible to choose if RTD-wire connection: 2-wire, 3-wire or 4-wire (for each input)
Wire measure and wire resistance compensation (if 3-wire connection)
Configuration of a filter applied to each input signal
It is possible to configure the module (node) address and baud-rate by Dip-Switches
It is possible to add/remove the module to/from RS485-bus without disconnecting the
communication or power supply
It is possible to switch automatically RS485 to RS232 or vice versa
Features
INPUT
Number
1
Resolution
13bit (if filter=0-1); 14 bit (if filter=2-7)
Sampling frequency
Configurable between: 48Hz (if the filter is deactivated), 20Hz (if
filter=1), 11Hz (if filter=2-7)
Rejection
50Hz or 60 Hz
Filter (0-7)
IIR and FIR; configurable between: 0 (deactivated), from 1(min) to
7(max)
Accuracy
Initial:0.05% of 350 (PT100, NI100 end scale); 0.05% of 1850 
(PT500, PT1000 end scale)
Linearity:0.025% of 350 (PT100, NI100 end scale); 0.025% of
1850 (PT500, PT1000 end scale)
Thermal stability: < 50 ppm/°K
EMI: < 1%
Protection
This module provides inputs protection against the ESD (up to
4kV)
Temperature
range
Resistance
range
(RTD=Rx)
Burn-out
error if
(RTD=Rx)
Max wire
resistance
(Rf)
Rated
current
through
RTD
RTD:PT100-type
input (EN 60751)
From -200°C
to 650°C
From 18.5
to 330
Rx<18 
Rx>341 
20
875µA
RTD:NI100-type
input (DIN 43760)
From -60°C
to 250°C
From 69
to 295
Rx<60 
Rx>301 
30
875µA
RTD:PT500-type
input (EN 60751)
From -200°C
to 750°C
From 92.5
to 1800
Rx<90 
Rx>1851 
30
333µA
RTD:PT1000-type
input (EN 60751)
From -200°C
to 210°C
From 185
to 1850
Rx<180 
Rx>1851 
30
333µA

USER MANUAL – Z-4RTD-2
3
CONNECTIONS
RS485 interface
IDC10 connector for DIN 46277 rail (back-side panel)
RS232 interface
Jack stereo 3.5mm connector: plugs into COMport
1500 Vac ISOLATIONS
Between: power supply, ModBUS RS485/RS232, input 1, input 2,
input 3, input 4
POWER SUPPLY
Supply voltage
10 – 40 Vdc or 19 – 28 Vac ( 50Hz - 60Hz)
Power
consumption
Max: 0.7W
The power supply transformer necessary to supply the module must comply with EN60742
(Isolated transformers and safety transformers requirements). To protect the power supply, it is
recommended to install a fuse.
MODULE CASE
Case-type
PBT, black
Dimensions
Width W = 100 mm, Height H = 112mm, Depth D = 17.5 mm
Terminal board
Removable 4-way screw terminals:
pitch 3.5mm, sections 2.5mm2
Protection class
IP20 (International Protection)

USER MANUAL – Z-4RTD-2
4
Input connections
It is possible to connect to Z-4RTD-2 module Platinum or Nichel thermoresistances with 2,3,4
wires.
RTD-wires
connection
Distance
between RTD
and module
Wires compensation
RTD measure (°C-)
depends/does not depend
on wire-resistances
2 wires
<10m
NO
Depends
3 wires
>10m
YES (the compensation is
performed on the average
value of wire resistances)
Does not depend (if the wire
resistances are equal)
4 wires
>10m
NO
Does not depend (max
accuracy)
Dip-switches table
In the following tables: box without circle means Dip-Switch=0 (OFF state); box with
circle means Dip-Switch=1 (ON state).

USER MANUAL – Z-4RTD-2
5
RS485 Register table
BAUD-RATE (Dip-Switches: DIP-SWITCH STATUS)
1
2
Meaning
Baud-rate=9600 Baud
Baud-rate=19200 Baud
Baud-rate=38400 Baud
Baud-rate=57600 Baud
ADDRESS (Dip-Switches: DIP-SWITCH STATUS)
3
4
5
6
7
8
Meaning
Address and Baud-Rate are acquired from memory(EEPROM)
Address=1
Address=2
Address=3
Address=4
X
X
X
X
X
X
……………………
Address=63
RS485 TERMINATOR (Dip-Switches: DIP-SWITCH STATUS)
9
10
Meaning
RS485 terminator disabled
RS485 terminator enabled
Name
Range
Interpretation of
register
R/W
Default
Address
MachineID
/
MSB, LSB
R
40001
Id_Code (Module ID)
0x16
Bit [15:8]
Ext_Rev (Module version)
Bit [7:0]
Errors
/
Bit
R
40002
Input 1 error: 0=there isn’t; 1=there is
/
Bit 15
Input 2 error: 0=there isn’t; 1=there is
/
Bit 14
Input 3 error: 0=there isn’t; 1=there is
/
Bit 13
Input 4 error: 0=there isn’t; 1=there is
/
Bit 12
Input 1 burn-out error: 0=there isn’t; 1=there is
/
Bit 11
Input 2 burn-out error: 0=there isn’t; 1=there is
/
Bit 10
Input 3 burn-out error: 0=there isn’t; 1=there is
/
Bit 9
Input 4 burn-out error: 0=there isn’t; 1=there is
/
Bit 8
Input 1 temperature-acquired error: 0=there isn’t; 1=there
is
/
Bit 7
Input 2 temperature-acquired error: 0=there isn’t; 1=there
is
/
Bit 6
Input 3 temperature-acquired error: 0=there isn’t; 1=there
is
/
Bit 5
Input 4 temperature-acquired error: 0=there isn’t; 1=there
is
/
Bit 4
Initialization error for input 1: 0=there isn’t; 1=there is
/
Bit 3
Initialization error for input 2: 0=there isn’t; 1=there is
/
Bit 2
Initialization error for input 3: 0=there isn’t; 1=there is
/
Bit 1

USER MANUAL – Z-4RTD-2
6
Initialization error for input 4: 0=there isn’t; 1=there is
/
Bit 0
Errors
IN1&IN2
/
Bit
R
40025
Supply-voltage error for input1: 0=there isn’t; 1=there is
/
Bit 15
RS485-reception error for input1: 0=there isn’t; 1=there is
/
Bit 14
Memory error (EEPROM) for input 1: 0=there isn’t; 1=there
is
/
Bit 13
This bit isn’t used
/
Bit 12
RTD (Rx) measure error for input 1: 0=there isn’t; 1=there
is
/
Bit 11
Wire-resistance (Rf) measure error for input 1 (if 3-wires
connection): 0=there isn’t; 1=there is
/
Bit 10
Acquisition error for input 1: 0=there isn’t; 1=there is
/
Bit 9
CRC EEPROM error for input 1: 0=there isn’t; 1=there is. If
“1”, it is not possible to save in memory (EEPROM)
/
Bit 8
Supply-voltage error for input2: 0=there isn’t; 1=there is
/
Bit 7
RS485-reception error for input2: 0=there isn’t; 1=there is
/
Bit 6
Memory error (EEPROM) for input 2: 0=there isn’t; 1=there
is
/
Bit 5
This bit isn’t used
/
Bit 4
RTD (Rx) measure error for input 2: 0=there isn’t; 1=there
is
/
Bit 3
Wire-resistance (Rf) measure error for input 2 (if 3-wires
connection): 0=there isn’t; 1=there is
/
Bit 2
Acquisition error for input 2: 0=there isn’t; 1=there is
/
Bit 1
CRC EEPROM error for input 2: 0=there isn’t; 1=there is. If
“1”, it is not possible to save in memory (EEPROM)
/
Bit 0
Errors
IN3&IN4
/
Bit
R
40026
Supply-voltage error for input3: 0=there isn’t; 1=there is
/
Bit 15
RS485-reception error for input3: 0=there isn’t; 1=there is
/
Bit 14
Memory error (EEPROM) for input 3: 0=there isn’t; 1=there
is
/
Bit 13
This bit isn’t used
/
Bit 12
RTD (Rx) measure error for input 3: 0=there isn’t; 1=there
is
/
Bit 11
Wire-resistance (Rf) measure error for input 3 (if 3-wires
connection): 0=there isn’t; 1=there is
/
Bit 10
Acquisition error for input 3: 0=there isn’t; 1=there is
/
Bit 9
CRC EEPROM error for input 3: 0=there isn’t; 1=there is. If
“1”, it is not possible to save in memory (EEPROM)
/
Bit 8
Supply-voltage error for input4: 0=there isn’t; 1=there is
/
Bit 7
RS485-reception error for input4: 0=there isn’t; 1=there is
/
Bit 6
Memory error (EEPROM) for input 4: 0=there isn’t; 1=there
is
/
Bit 5
This bit isn’t used
/
Bit 4
RTD (Rx) measure error for input 4: 0=there isn’t; 1=there
is
/
Bit 3
Wire-resistance (Rf) measure error for input 4 (if 3-wires
connection): 0=there isn’t; 1=there is
/
Bit 2
Acquisition error for input 4: 0=there isn’t; 1=there is
/
Bit 1
CRC EEPROM error for input 4: 0=there isn’t; 1=there is. If
“1”, it is not possible to save in memory (EEPROM)
/
Bit 0
Configuration
/
Bit
R/W
40041
Floating point (32bits) registers interpretation. If bit
40041.15=0, FP32bit_MSW is most significant word of
32bits registers and FP32bit_LSW is less significant word
of 32bit registers; if bit40041.15=1, FP32bit_LSW is most
0
Bit 15

USER MANUAL – Z-4RTD-2
7
significant word of 32bits registers and FP32bit_MSW is
less significant word of 32bit registers
These bits aren’t used
/
Bit [14:8]
LED ERR status to signal if there is input 1 error (see
bit40002.15): 0=LED ERR “ON” means that there is input
1 error; 1=LED ERR is regardless of input 1 error
0
Bit 7
LED ERR status to signal if there is input 2 error (see
bit40002.14): 0=LED ERR “ON” means that there is input
2 error; 1=LED ERR is regardless of input 2 error
0
Bit 6
LED ERR status to signal if there is input 3 error (see
bit40002.13): 0=LED ERR “ON” means that there is input
3 error; 1=LED ERR is regardless of input 3 error
0
Bit 5
LED ERR status to signal if there is input 4 error (see
bit40002.12): 0=LED ERR “ON” means that there is input
4 error; 1=LED ERR is regardless of input 4 error
0
Bit 4
Module behavior if there is input 1 error: 0=register 40042
is overwritten in 40003 (word register) and in 40007,40008
(floating point register); 1=content of register 40003 (word)
and 40007,40008(FP) is the last measure acquired
through input 1 correctly
0
Bit 3
Module behavior if there is input 2 error: 0=register 40043
is overwritten in 40004 (word register) and in
40009,40010(floating point register); 1= content of register
40004 (word) and 40009,40010(FP) is the last measure
acquired through input 2 correctly
0
Bit 2
Module behavior if there is input 3 error: 0=register 40044
is overwritten in 40005 (word register) and in
40011,40012(floating point register); 1= content of register
40005 (word) and 40011,40012(FP) is the last measure
acquired through input 3 correctly
0
Bit 1
Module behavior if there is input 4 error: 0=register 40045
is overwritten in 40006 (word register) and in
40013,40014 (floating point register); 1= content of
register 40006 (word) and 40013,40014(FP) is the last
measure acquired through input 4 correctly
0
Bit 0
Baudrate
Delay
Delay: from 0x00=0 to
0xFF=255
MSB, LSB
R/W
40036
Baud-rate for RS485 (baud-rate of module/node if
parameters are configurated by memory modality):
0=4800; 1=9600; 2=19200; 3=38400; 4=57600;
5=115200; 6=1200; 7=2400
38400
Bit [15:8]
Delay for RS485 (delay of communication response:
pauses between the end of Rx message and the start of
Tx message)
0
Bit [7:0]
Address
Parity
Address: from 0x01=1 to
0xFF=255
MSB, LSB
R/W
40035
Address for RS485 (address of module/node if parameters
are configurated by memory modality)
1
Bit [15:8]
Parity for RS485: 0=there isn’t; 1=even parity; 2=odd
parity
0
Bit [7:0]
Reset
0xCCCC
Word
R/W
40029
Reset of module, if reg.40029=0xCCCC
/
INPUT 1
IN1 Flags
/
Bit
R/W
40037
These bits aren’t used
/
Bit [15:8]
RTD-type input. If bit40037.[7:6]=0b00: PT100; if
bit40037.[7:6]=0b01: NI100; if bit40037.[7:6]=0b10:
PT500; if bit40037.[7:6]=0b11: PT1000
0b00
Bit [7:6]
Input measure type: 0=temperature; 1=resistance
0
Bit 5
RTD connection type: 2 or 4 wires (if bit40037.4=0), 3
0
Bit 4

USER MANUAL – Z-4RTD-2
8
wires (if bit40037.4=1)
Rejection: 0=50Hz; 1=60Hz
0
Bit 3
Filter applied to acquired input. To know the configurations
of bit40037.[2:0], see table1
0b010
Bit [2:0]
IN1
/
Word
R
40003
Measure of input 1 [°C/10] (if bit40037.5=0), [Ω/100] (if
bit40037.5=1 and RTD-type is PT100, NI100), [Ω/10] (if
bit40037.5=1 and RTD-type is PT1000, PT500)
/
IN1 MSW
FP32bit_MSW
R
40007
IN1 LSW
FP32bit_LSW
R
40008
Floating point measure of input 1 [°C] (if bit40037.5=0), [Ω]
(if bit40037.5=1 and RTD-type is PT100, NI100), [Ω] (if
bit40037.5=1 and RTD-type is PT1000, PT500). To
interpret the FP32bit register, see bit40041.15
/
IN1 wire
Word
R
40016
Wire-connection measure of input 1 [mΩ]
/
IN1 Fault
Between: -32000, 32000 (if
temperature); 0, 32000 (if
resistance)
Word
R/W
40042
Fault value of input 1 [°C/10] (if bit40037.5=0), [Ω/100] (if
bit40037.5=1 and RTD-type is PT100, NI100), [Ω/10] (if
bit40037.5=1 and RTD-type is PT1000, PT500).
8500
INPUT 2
IN2 Flags
/
Bit
R/W
40038
These bits aren’t used
/
Bit [15:8]
RTD-type input. If bit40038.[7:6]=0b00: PT100; if
bit40038.[7:6]=0b01: NI100; if bit40038.[7:6]=0b10:
PT500; if bit40038.[7:6]=0b11: PT1000
0b00
Bit [7:6]
Input measure type: 0=temperature; 1=resistance
0
Bit 5
RTD connection type: 2 or 4 wires (if bit40038.4=0), 3
wires (if bit40038.4=1)
0
Bit 4
Rejection: 0=50Hz; 1=60Hz
0
Bit 3
Filter applied to acquired input. To know the configurations
of bit40038.[2:0], see table1
0b010
Bit [2:0]
IN2
/
Word
R
40004
Measure of input 2 [°C/10] (if bit40038.5=0), [Ω/100] (if
bit40038.5=1 and RTD-type is PT100, NI100), [Ω/10] (if
bit40038.5=1 and RTD-type is PT1000, PT500)
/
IN2 MSW
FP32bit_MSW
R
40009
IN2 LSW
FP32bit_LSW
R
40010
Floating point measure of input 2 [°C] (if bit40038.5=0), [Ω]
(if bit40038.5=1 and RTD-type is PT100, NI100), [Ω] (if
bit40038.5=1 and RTD-type is PT1000, PT500). To
interpret the FP32bit register, see bit40041.15
/
IN2 wire
Word
R
40017
Wire-connection measure of input 2 [mΩ]
/
IN2 Fault
Between: -32000, 32000 (if
temperature); 0, 32000 (if
resistance)
Word
R/W
40043
Fault value of input 2 [°C/10] (if bit40038.5=0), [Ω/100] (if
bit40038.5=1 and RTD-type is PT100, NI100), [Ω/10] (if
bit40038.5=1 and RTD-type is PT1000, PT500).
8500
INPUT 3
IN3 Flags
/
Bit
R/W
40039
These bits aren’t used
/
Bit [15:8]
RTD-type input. If bit40039.[7:6]=0b00: PT100; if
bit40039.[7:6]=0b01: NI100; if bit40037.[7:6]=0b10:
PT500; if bit40039.[7:6]=0b11: PT1000
0b00
Bit [7:6]
Input measure type: 0=temperature; 1=resistance
0
Bit 5

USER MANUAL – Z-4RTD-2
9
RTD connection type: 2 or 4 wires (if bit40039.4=0), 3
wires (if bit40039.4=1)
0
Bit 4
Rejection: 0=50Hz; 1=60Hz
0
Bit 3
Filter applied to acquired input. To know the configurations
of bit40039.[2:0], see table1
0b010
Bit [2:0]
IN3
/
Word
R
40005
Measure of input 3 [°C/10] (if bit40039.5=0), [Ω/100] (if
bit40039.5=1 and RTD-type is PT100, NI100), [Ω/10] (if
bit40039.5=1 and RTD-type is PT1000, PT500)
/
IN3 MSW
FP32bit_MSW
R
40011
IN3 LSW
FP32bit_LSW
R
40012
Floating point measure of input 1 [°C] (if bit40039.5=0), [Ω]
(if bit40039.5=1 and RTD-type is PT100, NI100), [Ω] (if
bit40039.5=1 and RTD-type is PT1000, PT500). To
interpret the FP32bit register, see bit40041.15
/
IN3 wire
Word
R
40018
Wire-connection measure of input 3 [mΩ]
/
IN3 Fault
Between: -32000, 32000 (if
temperature); 0, 32000 (if
resistance)
Word
R/W
40044
Fault value of input 3 [°C/10] (if bit40039.5=0), [Ω/100] (if
bit40039.5=1 and RTD-type is PT100, NI100), [Ω/10] (if
bit40039.5=1 and RTD-type is PT1000, PT500).
8500
INPUT 4
IN4 Flags
/
Bit
R/W
40040
These bits aren’t used
/
Bit [15:8]
RTD-type input. If bit40040.[7:6]=0b00: PT100; if
bit40040.[7:6]=0b01: NI100; if bit40040.[7:6]=0b10:
PT500; if bit40040.[7:6]=0b11: PT1000
0b00
Bit [7:6]
Input measure type: 0=temperature; 1=resistance
0
Bit 5
RTD connection type: 2 or 4 wires (if bit40040.4=0), 3
wires (if bit40040.4=1)
0
Bit 4
Rejection: 0=50Hz; 1=60Hz
0
Bit 3
Filter applied to acquired input. To know the configurations
of bit40040.[2:0], see table1
0b010
Bit [2:0]
IN4
/
Word
R
40006
Measure of input 4 [°C/10] (if bit40040.5=0), [Ω/100] (if
bit40040.5=1 and RTD-type is PT100, NI100), [Ω/10] (if
bit40040.5=1 and RTD-type is PT1000, PT500)
/
IN4 MSW
FP32bit_MSW
R
40013
IN4 LSW
FP32bit_LSW
R
40014
Floating point measure of input 4 [°C] (if bit40040.5=0), [Ω]
(if bit40040.5=1 and RTD-type is PT100, NI100), [Ω] (if
bit40040.5=1 and RTD-type is PT1000, PT500). To
interpret the FP32bit register, see bit40041.15
/
IN4 wire
Word
R
40019
Wire-connection measure of input 4 [mΩ]
/
IN4 Fault
Between: -32000, 32000 (if
temperature); 0, 32000 (if
resistance)
Word
R/W
40045
Fault value of input 4 [°C/10] (if bit40040.5=0), [Ω/100] (if
bit40040.5=1 and RTD-type is PT100, NI100), [Ω/10] (if
bit40040.5=1 and RTD-type is PT1000, PT500).
8500

USER MANUAL – Z-4RTD-2
10
TABLE 1 – CONFIGURATIONS FOR FILTER APPLIED TO ACQUIRED INPUT
IN1 (bit40037.[2:0]), IN2 (bit40038.[2:0]), IN3 (bit40039.[2:0]), IN4 (bit40040.[2:0])
Bit [2:0]
Filter type
Propagation time (if IN<T)
Propagation time (if IN>T)
0b000
Deactivated
45ms
45ms
0b001
Average (13bits)
236ms
103ms
0b010
Average (14bits)
405ms
179ms
0b011
Average + exp (14bits)
1s
179ms
0b100
Average + exp (14bits)
3s
179ms
0b101
Average + exp (14bits)
8s
179ms
0b110
Average + exp (14bits)
24s
179ms
0b111
Average + exp (14bits)
72s
179ms
Threshold values T: PT100, T=8°C; NI100, T=5°C; PT500, T=9°C; PT1000, T=5°C.
Propagation time: interval time between a step change of input electrical signal and
corresponding change of measure in register (at 115kBaud). The propagation times shown in
table 1 refer to 50Hz rejection; to obtain the propagation times refer to 60Hz rejection, divide
them for 1.2.
LEDs for signalling
In the front-side panel there are 4 LEDs and their state refers to important operating conditions
of the module.
LED
LED status
Meaning
PWR
Constant light
The power is on
ERR
Blinking light
The module has at least one of the errors described in RS485
Registers table
Constant light
Module failure
RX
Constant light
Verify if the bus connection is corrected
Blinking light
The module received a data packet
TX
Blinking light
The module sent a data packet
Constant light
Module failure
Easy-SETUP
To configure the Seneca Z-PC Line modules, it is possible to use Easy-SETUP software,
Free-downloadable from the www.seneca.it; the configuration can be performed by RS232 or
RS485 bus communication.