Home » Categories » Multiple Categories |
Why are my PLX gateway modbus serial commands not executing despite being enabled? |
Article Number: 564 | Rating: Unrated | Last Updated: Thu, Aug 13, 2015 at 10:13 PM |
If your modbus serial port and its commands are both enabled, but the commands do not appear to even be executing (status shows no requests are being made, data analyzer shows nothing coming out of the port, etc.) check the value of Command Control Reg. Command Control Reg is located in the port settings and is a special override that allows you to control when your commands execute. If you are not intending to use this feature, but the Command Control Reg value is set to anything but -1, change the value to -1 to disable this feature, and download the updated configuration. Without the CCR to override your commands, you should see them begin to execute as intended. As always, if this does not fix your issue, call or email your region's Prosoft Technical Support for further troubleshooting assistance. |
Attachments (0)
![]()
There are no attachments for this article.
|
Comments
![]()
There are no comments for this article. Be the first to post a comment.
|
How can a module's Modbus port, configured as a Slave port, detect communication loss with the Master port?
Viewed 1 times since Tue, Nov 28, 2006
What's the difference between Modbus ASCII and Modbus RTU?
Viewed 1 times since Wed, Mar 19, 2008
Do any Prosoft modules support Modbus UDP?
Viewed 1 times since Mon, Aug 24, 2015
If I am reading the value from ProSoft 4x register, and it represents a digital input or digital output, how is the value stored?
Viewed 1 times since Tue, Nov 28, 2006
What do the jumpers do on the PLX3x gateways?
Viewed 1 times since Mon, Sep 15, 2014
Which of your products support RS-485 serial protocols?
Viewed 1 times since Wed, Feb 6, 2008
Are the Ethernet port(s) Auto MDI-X ports?
Viewed 1 times since Wed, Sep 24, 2014
Differences between the PLX31 & PLX32 Gateways
Viewed 1 times since Fri, Jul 10, 2015
Can Modbus support redundant masters?
Viewed 1 times since Tue, Nov 28, 2006
I have a ProSoft Modbus Master solution and would like to know, is the Slave Status List the best place to monitor for communications health of the network?
Viewed 1 times since Tue, Mar 18, 2008
|