Publication 1756-UM001E-EN-P - August 2002
23-2
Configure Dial-Up Communications
Step 1: Connect and
Configure the Modems
A.
Connect each controller to the modem using the following
Allen-Bradley cable:
A-B 1784-CAS
,
25-pin male modem connector
The cable has the following wiring:
B.
Configure the modems:
controller
(9-pin female)
modem
(25-pin male)
DCD
1
8
RXD
2
3
TXD
3
2
DTR
4
20
COMMON
5
7
DSR
6
6
RTS
7
4
CTS
8
5
Configure this signal:
To:
DSR
be on (high) when a modem connection exists
DCD (CD)
be on (high) whenever the modem receives the
carrier from the remote modem
DTR
hang-up when the controller changes the DTR
signal from on to off (E.g., Set DTR to normal, not
override.)
Summary of Contents for controllogix 1756-L63
Page 1: ...ControlLogix System 1756 L1 L1Mx L55Mxx L63 User Manual Allen Bradley HMIs...
Page 4: ...Publication 1756 UM001E EN P August 2002 Summary of Changes 2 Notes...
Page 16: ...Publication 1756 UM001E EN P August 2002 Table of Contents x...
Page 268: ...Publication 1756 UM001E EN P August 2002 15 4 Monitor Connections Notes...
Page 276: ...Publication 1756 UM001E EN P August 2002 16 8 Communicate with a DeviceNet Device Notes...
Page 402: ...Publication 1756 UM001E EN P August 2002 24 22 Program Motion Control Notes...
Page 408: ...Publication 1756 UM001E EN P August 2002 25 6 Maintain the 1756 BA1 Battery Notes...
Page 418: ...Publication 1756 UM001E EN P August 2002 B 2 Estimate Execution Time...
Page 420: ...Publication 1756 UM001E EN P August 2002 C 2 Estimate Memory Use...
Page 422: ...Publication 1756 UM001E EN P August 2002 D 2 Determine When Data Is Updated Notes...
Page 424: ...Publication 1756 UM001E EN P August 2002 E 2 Reconfigure an I O module Notes...
Page 428: ...Publication 1756 UM001E EN P August 2002 4 Index...
Page 429: ...Publication 1756 UM001E EN P August 2002 Index 5 Allen Bradley HMIs...
Page 430: ...Publication 1756 UM001E EN P August 2002 6 Index...
Page 435: ...ControlLogix System User Manual Allen Bradley HMIs...