VT-MODEM Interfaces with a SIEMENS S7-200 series PLC
Source: SIXNET
The SIEMENS S7-200 CPU 212 PLC can be controlled remotely via the telephone wiring using SIXNET industrial modems
SIXNETIEMENS S7-200 CPU 212 PLC can be controlled remotely via the telephone wiring using SIXNET industrial modems. The SIEMENS S7-200 CPU 212 PLC can be programmed through the phone connection. Although a CPU 212 was used in this application any CPU 21X and 22X in 11-bit mode will communicate in the same manner.
This document explains the procedure of dialing and establishing communications between a local PC running SIEMENS STEP 7 SIMATIC Micro/WIN 32 V3.1 software and a Siemens S7-200 series PLC via a pair of SIXNET industrial modems (VT-MODEM-#). Information in this document was prepared by SIXNET.
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