User`s guide

Page 46

Controlinc 1746-C (Version 5.21) Network Master Users Guide (2004-11-18)

Word [17]: FUNCTION: Poll for Input Registers [1000-1003] on TEC2000 Systems

This is a flag that indicates whether or not the 1746-C should request the input registers on any

TEC2000 system detected when scanning. The input register values are stored in tables [21 -

24] such that …

• Table [21] contains register [1000] status bits.

• Table [22] contains register [1001] status bits.

• Table [23] contains register [1002] status bits.

• Table [24] contains register [1003] status bits.

This data is retrieved with a separate Modbus read command when the particular actuator is

being polled (scanned).

If word [17] == 0 do not poll for input registers.

If word [17] =/= 0 (any non-zero value) … poll for input registers.

By default, word [17] == 0 … do not poll.