Publication 1756-UM001E-EN-P - August 2002
Configure Dial-Up Communications
23-11
Step 6: Hang-Up
Enter the following logic to hang-up:
After the remote controller receives the message (
message
.DN
is on), the AHL turns off the DTR
line, which causes the modem to hang up.
After the modem hangs up (
modem_hangup_1
.EM
is on), the AHL instruction turns on the DTR
line, which readies the modem for the next call.
42393
message.DN
EN
DN
ER
ASCII Handshake Lines
Channel
0
AND Mask
1
OR Mask
0
SerialPort Control
modem_hangup_1
Channel Status(Decimal)
0
AHL
modem_hangup_1.EM
EN
DN
ER
ASCII Handshake Lines
Channel
0
AND Mask
0
OR Mask
1
SerialPort Control
modem_hangup_2
Channel Status(Decimal)
0
AHL
Where:
Is:
message
tag that controls the execution of the message
(MESSAGE data type)
modem_hangup_1
tag that controls the execution of the AHL
(SERIAL_PORT_CONTROL data type)
modem_hangup_2
tag that controls the execution of the AHL
(SERIAL_PORT_CONTROL data type)
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...