MultiTrode MultiSmart Installation & Operation Manual page 98

7. Change thee Comms Channel parameter to TCP/IP 1 (or TCP/IP 2 or 3 if channel 1 is already used
by another application). Then change the Link Type parameter to TCP.
8. Next, from the Advanced screen, navigate to:
9. Change the Connection Type parameter to Initiating end-point.
10. Then navigate to:
11. Set the IP Address parameter to the address selected for the ADAM IO device, and then set the TCP
Port parameter to 502 (which is the default port for Modbus communications).
12. Once the changes are complete, press Save and restart the unit.
14.7.5 Verifying the Communication & Values
Communications to an external I/O device can be verified by navigating to:
If communications have been successfully established then Online is True and Comms Fail is False.
Online status indicates whether the last message sent was acknowledged by the receiving device. If
•
no acknowledgment is received within a preset time, then Online is set to False. (Relevant
parameter - Default Response Timeout, default is 20s).
Comms Fail – if the channel remains offline for longer than a preset time, then Comms Fail is set to
•
False. (Relevant parameter - Comms Fail Time, default is 2 mins).
The Transmitted and Received counts are incremented on each message received or transmitted. By
default, scans are configured to occur every 2 seconds.
To view the values read by the MultiSmart, press the Back button, select the Modbus Master Values
button, and then select one of the point classes. All the points values read from the I/O device are displayed
and are dynamically updated as new values are read.
The full menu path is:
Highlight a point and pressing the Details button displays more detailed information for the selected point.
For example, if an analog value (input register) is selected, then the raw and scaled values can be compared
from this screen.
Page 98 of 201
MultiSmart Installation & Operation Manual
MultiSmart_IO_Manual_A4_v2-22_R15.doc