Electrical & Software Control Systems for 
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(407) 290-2000

This is the setup information for connecting a modem to a Allen-Bradley SLC 500. We have tested this setup with a 14,400 and a 57k USRobotics modem. The Modem to SLC cable is a standard off the shelf 25-to-9 pin serial cable.

 USRobotics
Modem DIP Settings

 

SLC Communications Setup

1

DN

DTR Override

 

Computer/Terminal Address

7

2

UP

Verbal Result Codes

 

HW Type

S/03,S/04,CH0,1770-KF3,1747-K3

3

DN

Display Result Codes

 

Online Wait for Reply Timeout

15 seconds

4

UP

Echo Offline Command

 

Communication Port

COM1

5

UP

Auto Answer

 

Baud

9600

6

UP

Carrier Detect Normal

 

Parity

None

7

DN

Load Factory Settings

 

Error Checking Mode

CRC

8

UP

Dumb Mode

 

Protocol

Full Duplex

 

 

Dial

Yes

 

 

 

CH0 Sys

 

Communication Driver

DF1 Full Duplex

Baud Rate

9600

Stop Bits

1

Duplicate Packet Detection

Enabled

ACK Timeout (x20ms)

50

Control Line

No Handshaking

Source ID

9

Parity

None

Error Detection

CRC

Max Retries

3

ENQ Retries

3

Embedded Response

Enabled

             

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