Configuring a RS-232 Sigma field connection between a controller and laptop

[Product_Support]

Issue

Can't get the a Sigma laptop to communicate with a Sigma controller via the RS-232 connection (Diagnostic Port SK1).

Environment

Sigma

RS-232 Communications

Serial Communications

Local Communications

Service port

Cause

Configuration error

Resolution

Use the following check list to confirm correct configuration.

On the main Sigma server

1. Create a service server in the main server and ensure the Att.set files are downloaded to the controllers
   On the laptop
2. Set the C:\Sigma\Data\Sigma.ini file entry RS232 = 1
3. Set the C:\Sigma\Data\Sigma.ini file entry Commport=1, Baudrate=9600 (Note: ensure the BAS Integrator is not enabled as it also set for Comm port 1 by default)
4. Set the laptop server number the same as service server number in item 1 above (System Setup -General - Server Details).
5. Restart the laptop Sigma server
6. If you are using Sigma 4.05 build 3.42.34 then you need a Hotfix to enable the Sigma serial communications.  Click here for Hotfix 3.42.46.  Later Sigma releases do not require a hotfix.
7. Confirm the RS232 cable wiring is correct and not broken.