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Appendix a cx-10 modbus map – Remote Processing CX-10 User Manual

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Appendix A CX-10 Modbus Map

Appendix A Modbus Map

Page 6

Watchdog Timer
These are all integer (16 bit) types. Function code 3 reads, 16 writes.

Register

Read/Write Permission

Detail

30

Read or write

Watchdog timeout value.
0 = disable watchdog
1-255 = Timeout seconds.

31

Read or write

Watchdog timer value. This register increments every second until it
matches the value in Register 30 or until a 0 is written to this register.

Non-Volatile Intgeger storage
These are integer (16 bit) types. Function code 3 reads, 16 writes. Address range is 4001 to 4256, inclusive. These registers
retain data when power is removed from the board. These registers may be set to 0 by writing a 0 to register 4802 and
resetting the board. Note that writing a 0 to 4802 also clears floating point non-volatile registers.

Volatile Integer storage
These are integer (16 bit) types. Function code 3 reads, 16 writes. Address range is 4501 to 4628. These registers reset to 0
on power up or CPU reset (manual or watchdog timeout).