List of Contributions

Joe Hamman

Contact Details

Joe Hamman


My Content

1 to 10 of 10 total

RE: PV800 Modbus RTU string problem

Posted By Joe Hamman Jun 30, 2026 01:57:22 PM
Found In Egroup: Automation Control \ view thread
Hi Wan Shan, Thanks! It is working perfectly for strings. Best regards, Joe

RE: PV800 Modbus RTU string problem

Posted By Joe Hamman Jun 22, 2026 08:10:00 AM
Found In Egroup: Automation Control \ view thread
Hi Loo, Thanks for the info! I'll reconfigure for Modbus TCP and wait for the release. Is the an estimated release date for v8.016? Thanks, Joe

RE: PV800 Modbus RTU string problem

Posted By Joe Hamman Jun 21, 2026 06:39:00 AM
Found In Egroup: Automation Control \ view thread
I reconfigured the PV800 to be Modbus RTU Unsolicited to put it in server mode and reconfigured the non-RA device to be a Modbus client. When trying to display a string of 1 character "A", I still only see an "*". I tried both big endian and little endian forms of the 16-bit word, with no luck. ...

PV800 Modbus RTU string problem

Posted By Joe Hamman Jun 19, 2026 07:12:00 AM
Found In Egroup: Automation Control \ view thread
Hi all, I've been using the Micro800/PV800 combo for several years. I am now trying to use the PV800 as an HMI for a non-RA device via Modbus. I have coils (bool) and holding registers (signed and unsigned 16 and 32 bit) working well. I'm running into a problem trying to read and write strings. I ...

RE: Supporting Micro800 runtime variants

Posted By Joe Hamman Jun 15, 2023 04:19:00 AM
Found In Egroup: Automation Control \ view thread
Hi Mark, Thanks for confirming! Regards, Joe ------------------------------ Joe Hamman ------------------------------

Supporting Micro800 runtime variants

Posted By Joe Hamman Jun 13, 2023 08:41:00 PM
Found In Egroup: Automation Control \ view thread
Hi all, My customer has a product using a Micro850 that may be optionally configured with 0, 1 or 2 2080-SERIALISOL modules at the time of manufacture. With the help from this forum, I learned that these modules must be "hard-coded" into the project configuration. If the project is built with the ...

RE: 2080-LC50 detecting when HMI application is running after boot

Posted By Joe Hamman Apr 04, 2023 06:51:00 AM
Found In Egroup: Automation Control \ view thread
Thanks Philip. That worked perfectly! ------------------------------ Joe Hamman ------------------------------

2080-LC50 detecting when HMI application is running after boot

Posted By Joe Hamman Mar 28, 2023 09:12:00 AM
Found In Egroup: Automation Control \ view thread
I tried searching, but didn't have much luck. I'm using a Micro800 (2080-LC50) with a PV800 (2711R-T4T) in a standalone product. Is there a reliable way for the PLC to determine the HMI has finished booting and is running my application? My HMI application is "Set As Startup". The PLC and HMI are ...

RE: Any way to inhibit 2080-SERIALISOL module?

Posted By Joe Hamman Mar 23, 2023 09:21:00 AM
Found In Egroup: Automation Control \ view thread
Thanks for the quick reply! Yes, I saw that app note. I was hoping there might be another way, like using the fault handler. I ran a quick test and it looks like the User Fault Routine is never called when a missing serial module is the cause of the fault. Looks like we are going to have to ...

Any way to inhibit 2080-SERIALISOL module?

Posted By Joe Hamman Mar 23, 2023 07:41:00 AM
Found In Egroup: Automation Control \ view thread
Our product supports up to two optional serial peripherals, and we would like to support the four combinations using the same CCW program. Using the PLUGIN_INFO command I can determine if the module is installed and in which slot. Unfortunately, CCW does not allow the selection of inhibit for this module ...