Vision, Samba, Jazz and M90 PLC + HMIs & Software
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Hi George I think the idea of the "modbus address access limitation" is to copy addresses you want access to to the unprotected area. therefore the external user can read and write to this area only. since the data is only a copy of data used in the ladder it does not matter if someone writes in error to the address. Regards Denis -
Hi Philip; You will need a Unitronics UCR Router to extract the data from the M91, via the RS232 COM 1 Port, and you need to use Modbus protocol. One obstacle is M91 has 1 Comport, so it has to be shared between Modbus and programming when needed. Share the same com settings for both. DanT -
Please read this topic. Problem with modem init can be PLC firmware related -
Hi all, I am using a SAMBA SM43-J-T20 with a V100-17-RS4 serial port, I need to connect it to a serial modem to send SMS messages. The problem is that it does not initialize the modem on the serial port COM 2, Visilogic program is derived from another one working perfectly on a V700 PLC with the same serial modem. COM INIT FB and SMS CONFIG FB have the same parameters across the V700 and SAMBA programs. Attached is a capture of COM INIT FB on SAMBA PLC. Connecting the serial port to a PC, in a terminal I can see that the SAMBA only sends 2+++" string while the V700 sends "+++" and "ATH" after a while. The initialization string configured in Visilogic COM INIT 2 FB is the following: +++ ATH AT <PIN CODE> WAIT 3 AT+CLIP=1 ATS0=1 Is there anything to do to solve this problem? Thanks for support -
Is it possible to use ucr router with m91 with the rs-232 port? I would like to remote access to my m91 with unicloud
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