Analog Channel Parameters
Original instructions
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Overview
Parameters must be set for all of the analog channels before the module can be commissioned. This section provides the codes for setting the parameters and gives examples of parameter settings.
NOTE: If you set new parameters for the module, always send a complete set of parameters (all channels, inputs and outputs), even if you only want to change a single parameter. Otherwise, the module will refuse the new parameters and continue working with the old ones.
Key
This section focuses on output words 1 ... 4, as highlighted in the table below:
Word
Input Data
Output Data
1 = LSW
Value, input channel 1
Parameters for input channels 1
2
Value, input channel 2
Parameters for input channels 2
3
Value, input channel 3
Parameters for input channels 3
4 = MSW
Value, input channel 4
Parameters for input channels 4
Illustration
Parameters are set by entering a four-bit code in output words 1 ... 4, as follows:
Parameters
For each input channel, you may set the following parameters:
Parameter
Options
Input range
Type B,E,J,K,N,R,S or T thermocouple (according to IEC584 standard, June1989) with internal cold junction compensation
RTD
Pt100 or Pt1000 RTDs (according to IEC751, June 1986; or JIS C1604, January 1989), and Ni100 or Ni1000 RTDs (according to DIN standard 43.760, September 1987), with 2-, 3- or 4 wires
Low voltage range
+/-100 mV or +/-25 mV
Broken wire detection
Enabled or disabled
NOTE: The 0000 reserved value is more a control than a parameter. It forces the I/O base into a default condition where it continues to receive field inputs according to the previous channel parameters.
Thermocouple Parameter Codes
Use the following codes to set your choice of parameters:
Input range
Temperature unit
Broken-wire detection
Parameter code (hex)
Thermocouple B
1/10 degrees C
disabled
2201
enabled
2301
1/10 degrees F
disabled
2281
enabled
2381
Thermocouple E
1/10 degrees C
disabled
1202
enabled
1302
1/10 degrees F
disabled
1282
enabled
1382
Thermocouple J
1/10 degrees C
disabled
1203
enabled
1303
1/10 degrees F
disabled
1283
enabled
1383
Thermocouple K
1/10 degrees C
disabled
1204
enabled
1304
1/10 degrees F
disabled
1284
enabled
1384
Thermocouple N
1/10 degrees C
disabled
1205
enabled
1305
1/10 degrees F
disabled
1285
enabled
1385
Thermocouple R
1/10 degrees C
disabled
2206
enabled
2306
1/10 degrees F
disabled
2286
enabled
2386
Thermocouple S
1/10 degrees C
disabled
2207
enabled
2307
1/10 degrees F
disabled
2287
enabled
2387
Thermocouple T
1/10 degrees C
disabled
2208
enabled
2308
1/10 degrees F
disabled
2288
enabled
2388
RTD Parameter Codes
Use the following codes to set your choice of parameters:
Input range
Wiring configuration
Temperature unit
Broken-wire detection
Parameter code (hex)
IEC PT100 RTD
2- or 4-wire
1/10 degrees C
disabled
0A20
enabled
0B20
1/10 degrees F
disabled
0AA0
enabled
0BA0
3-wire
1/10 degrees C
disabled
0E20
enabled
0F20
1/10 degrees F
disabled
0EA0
enabled
0FA0
IEC PT1000 RTD
2- or 4-wire
1/10 degrees C
disabled
0221
enabled
0321
1/10 degrees F
disabled
02A1
enabled
03A1
3-wire
1/10 degrees C
disabled
0621
enabled
0721
1/10 degrees F
disabled
06A1
enabled
07A1
US/JIS PT100 RTD
2- or 4-wire
1/10 degrees C
disabled
0A60
enabled
0B60
1/10 degrees F
disabled
0AE0
enabled
0BE0
3-wire
1/10 degrees C
disabled
0E60
enabled
0F60
1/10 degrees F
disabled
0EE0
enabled
0FE0
US/JIS PT1000 RTD
2- or 4-wire
1/10 degrees C
disabled
0261
enabled
0361
1/10 degrees F
disabled
02E1
enabled
03E1
3-wire
1/10 degrees C
disabled
0661
enabled
0761
1/10 degrees F
disabled
06E1
enabled
07E1
DIN Ni100 RTD
2- or 4-wire
1/10 degrees C
disabled
0A23
enabled
0B23
1/10 degrees F
disabled
0AA3
enabled
0BA3
3-wire
1/10 degrees C
disabled
0E23
enabled
0F23
1/10 degrees F
disabled
0EA3
enabled
0FA3
DIN Ni1000 RTD
2- or 4-wire
1/10 degrees C
disabled
0222
enabled
0322
1/10 degrees F
disabled
02A2
enabled
03A2
3-wire
1/10 degrees C
disabled
0622
enabled
0722
1/10 degrees F
disabled
06A2
enabled
07A2
Low Voltage Parameter Codes
Use the following codes to set your choice of parameters:
Input range
Broken-wire detection
Parameter code (hex)
+/-25mV
disabled
2210
enabled
2310
+/-100mV
enabled
1211
disabled
1311