Specifications

Getting Started About Modems
VisiLogic: Getting Started 33
Data Communications include all of the options shown below:
CANbus
Modems, Landline and GSM/GPRS
GPRS
Ethernet
DF1 Slave (Allen-Bradley)
RS232
RS485 Options
Communication FBs
SMS messaging
GPRS
MODBUS (serial)
MODBUS IP (Ethernet)
Communications Protocol FB
PC-Vision communications
PC-Modem Configuration
Remote Access: Accessing a PLC via PC
Accessing a Networked PLC via PC
SD Card Remote Access
SD Card Explorer
About Modems
Unitronics' controllers can be hooked up to PSTN (landline), or GSM/GPRS
modems via the RS232 COM port. Unitronics provides kits that comprise
modems that have been tested by Unitronics and are supported for use with
Vision, Jazz, and M90/91 PLCs.
Before
you can use modems in your application,
you must use
Modem Services to initialize both the PC and PLC-side modems.
This process is referred to as 'Prepare Modem'.
Modem services
Modem Services is located on the Connections menu.
To use Modem Services, connect the modem to a PC, using the cable
supplied by the modem manufacturer. You can then initialize the modem.
Once you have connected initialized modems to your PC and PLC, you can use
Modem Services to establish communications with a remote PLC.
PC-side Modems
You can use a PC modem to access a remote, modem-linked controller and
perform any task, just as you would if the PLC were directly connected to your
PC. For example, you can:
Dial a remote PLC modem and receive calls from a PLC.
Download, upload, and edit the controller program via the modem
connection.