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Rockwell Automation Publication 5069-UM003B-EN-P - January 2020
Chapter 3
Compact 5000 I/O Serial Module Features
Command Disable function
In Firmware revision 2.011 and later, the user is now able to disable a Modbus
Master command at runtime by controlling the disable switch bit in the output
array of the Modbus Master channel. A total of 50 bits are available with each bit
representing a Modbus Master command. A disabled command would have the
corresponding Ixx.CommandXX.Disabled bit set. To disable a Modbus
command, turn ON the disable corresponding bit in the output array. Example:
Command 0 disable bit is referring to the Oxx.Command00Disable bit.
Table 10 - Inter-frame Timeout Minimum Values (10 Bit)
Baud Rate
Default Value
1 Byte (10 Bit)
3.5 t (10 Bit)
Legal Range (10 Bit)
1200
58000
8333.333
29166.667
29000…65535000 (us)
2400
28000
4166.667
14583.333
14000…65535000 (us)
4800
14400
2083.333
7291.667
7200…65535000 (us)
9600
7200
1041.667
3645.833
3600…65535000 (us)
19200
3500
520.833
1822.917
1750…65535000 (us)
38400
3500
260.417
911.458
1750…65535000 (us)
57600
3500
173.611
607.639
1750…65535000 (us)
115200
3500
86.806
303.819
1750…65535000 (us)
Table 11 - Inter-frame Timeout Minimum Values (11 Bit)
Baud Rate
Default Value
1 Byte (11 Bit)
3.5 t (11 Bit)
Legal Range (11 Bit)
1200
64000
9166.667
32083.333
32000…65535000 (us)
2400
32000
4583.333
16041.667
16000…65535000 (us)
4800
16000
2291.667
8020.833
8000…65535000 (us)
9600
8000
1145.833
4010.417
4000…65535000 (us)
19200
3500
572.917
2005.208
1750…65535000 (us)
38400
3500
286.458
1002.604
1750…65535000 (us)
57600
3500
190.972
668.403
1750…65535000 (us)
115200
3500
95.486
334.201
1750…65535000 (us)