User`s guide

Page 66

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

5.4.9. Table [11]: Valve Position Indication … 0 – 4095

Words [4

 63] PLC access: Read Only.

This table contains the 0-4095 representation of the valve position for the actuators. This data is

derived from holding register [14] in the actuators and is retrieved with the “standard data request

” -

Modbus read command when the particular actuator is being polled (scanned).

Example Table [11] Feedback (48-node network) …

Characteristics:

• Units [1, 3, 4] position indication is 0 (out of 4095) … 0% open … either fully closed or not

operating.

• Unit [2] position indication is 2892 (out of 4095) … ~~ 70.6% open

• The rest of the network’s position indication is fully open … 4095 out of 4095

Last Node

on 48 Node

Network

First Node

on Network