38 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)
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