Publication 1756-UM001E-EN-P - August 2002
19-10
Communicate with Another Controller over a DH-485 Network
Step 5: Check the LED
Once you download the project to the controller, use the RS232 LED,
on the front of the controller, to determine if there are other stations
on the DH-485 network.
Step 6: Stagger the
Messages
As you add messages to your project, you may have to coordinate the
execution of the messages. To avoid errors and assure that each
message is processed, follow these rules:
If the number of messages in your application exceeds rules 1 and 2,
then stagger the execution of your messages. Here are some options:
•
Send each message in sequence
•
Send the messages in groups that are within the limits of rules 1
and 2
If the RS232 LED is:
Then:
flashing
There are no other stations on the DH-485 network.
steady
There is at least one other station on the DH-485 network.
42525
Rule 1:
Enable no more than 16 messages at one time (including block transfers).
Rule 2:
Enable no more than 10 of the following types of messages at one time:
•
CIP data table reads or writes that are
not
cached
•
CIP generic
•
PLC2, PLC3, PLC5, or SLC (all types)
•
block transfer reads or writes that are
not
cached
Содержание controllogix 1756-L63
Страница 1: ...ControlLogix System 1756 L1 L1Mx L55Mxx L63 User Manual Allen Bradley HMIs...
Страница 4: ...Publication 1756 UM001E EN P August 2002 Summary of Changes 2 Notes...
Страница 16: ...Publication 1756 UM001E EN P August 2002 Table of Contents x...
Страница 46: ...Publication 1756 UM001E EN P August 2002 2 4 Download and Go Online over an EtherNet IP Network Notes...
Страница 116: ...Publication 1756 UM001E EN P August 2002 6 16 Communicate with a PanelView Terminal Over a EtherNet IP Network Notes...
Страница 156: ...Publication 1756 UM001E EN P August 2002 8 16 Communicate with 1756 I O over a ControlNet Network Notes...
Страница 184: ...Publication 1756 UM001E EN P August 2002 9 28 Communicate with 1771 I O Over a ControlNet Network Notes...
Страница 200: ...Publication 1756 UM001E EN P August 2002 10 16 Communicate with 1794 I O Over a ControlNet Network Notes...
Страница 218: ...Publication 1756 UM001E EN P August 2002 11 18 Communicate with Another Controller over a ControlNet Network Notes...
Страница 222: ...Publication 1756 UM001E EN P August 2002 12 4 Route PLC 5 Messages Between ControlNet Networks Notes...
Страница 268: ...Publication 1756 UM001E EN P August 2002 15 4 Monitor Connections Notes...
Страница 276: ...Publication 1756 UM001E EN P August 2002 16 8 Communicate with a DeviceNet Device Notes...
Страница 306: ...Publication 1756 UM001E EN P August 2002 18 8 Route PLC 5 or SLC 500 Messages From a DH Network Notes...
Страница 368: ...Publication 1756 UM001E EN P August 2002 22 18 Configure DF1 Master and Slave Communications Notes...
Страница 402: ...Publication 1756 UM001E EN P August 2002 24 22 Program Motion Control Notes...
Страница 408: ...Publication 1756 UM001E EN P August 2002 25 6 Maintain the 1756 BA1 Battery Notes...
Страница 418: ...Publication 1756 UM001E EN P August 2002 B 2 Estimate Execution Time...
Страница 420: ...Publication 1756 UM001E EN P August 2002 C 2 Estimate Memory Use...
Страница 422: ...Publication 1756 UM001E EN P August 2002 D 2 Determine When Data Is Updated Notes...
Страница 424: ...Publication 1756 UM001E EN P August 2002 E 2 Reconfigure an I O module Notes...
Страница 428: ...Publication 1756 UM001E EN P August 2002 4 Index...
Страница 429: ...Publication 1756 UM001E EN P August 2002 Index 5 Allen Bradley HMIs...
Страница 430: ...Publication 1756 UM001E EN P August 2002 6 Index...
Страница 435: ...ControlLogix System User Manual Allen Bradley HMIs...