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How do I connect to an Allen Bradley PLC using a US Robotics Modem?

Remote PLC Connection

How do I connect to an Allen Bradley PLC using a US Robotics Modem?

by  chakorules  Posted    (Edited  )
Use these settings in the PLC for SLC 5/03 or MICRO1500 LRP channel 0 configuration:

Current communication mode = SYSTEM
System mode driver = DF1 FULL-DUPLEX
User mode driver = ASCII

CH 0 SYSTEM CONFIG
BAUD = 9600
STOP = 1
Duplicate detect = unchecked
Ack time out = 150
SRC DEC ID = 9
Control line = Full-Duplex modem
Parity = none
Error detect = BCC
Nak retries = 3
Enq retries = 3
Embedded responses = Auto-detect

COMPUTER CONFIG
Start RS Linx
Click on Configure Driver
Select RS232 DF1 Devices
Click ADD NEW
Rename it to:
AB_MODEM
Set COM port to MODEM port (usually COM1)
Set Device = SLC-CH0/Micro/Panelview
Set Baud Rate = 9600
Set Station Number = 0
Set Parity = NONE
Set Error Checking = BCC
Set Stop Bits = 1

Click check mark:
USE MODEM DIALER
Click on Configure Dialer
Add a phone number in ADDRESS BOOK
Click OK should DIAL
Also when finished HIGHLIGHT driver
then click on STARTUP
Set Startup to MANUAL


=====================================
STRINGS to SEND TO USR MODEM

****Send these first in HyperTerminal

AT&F0
ATY0
AT&B1&C1&D2&H1&K0&M0&N6&R1&S1&W0
ATB0&W0
ATS0=1&W0


****Then send these NEXT in HyperTerminal

AT&A1

AT&B0

AT&C1

AT&D2

AT&G0

AT&H0

AT&I0

AT&K0

AT&M1

AT&N6

AT&P0

AT&R1

AT&S0

AT&T5

AT&U0

AT&Y1

AT&W0

AT&W1

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