Publication 1747-UM005B-EN-P - March 2006
Communicate with the Interface Module
3-5
Messages from the remote nodes on the DH-485 network (such as the
SLC nodes) use the destination address of the module. Normally the
module responds to a message from the DF1 master by swapping the
source and destination addresses in the received message, assuring
that the reply message is sent to the proper DF1 master station.
If a DH-485 node initiates a message to the DF1 master, the module
overwrites the destination address with the master station value
configured in the Remote mode submenu. The message received by
the half-duplex master will contain a source address equal to the
station address specified in the poll packet, and a destination address
equal to the address of the half-duplex master device.
Remember that half-duplex DF1 (group) addresses are in octal and
DH-485 node addresses are in decimal.
The table on page 3-6 provides the conversion using the group
number.
Summary of Contents for 1747-KE
Page 1: ...DH 485 RS 232C Interface Module Catalog Number 1747 KE User Manual AB Parts ...
Page 4: ...Publication 1747 UM005B EN P March 2006 2 Summary of Changes Notes ...
Page 12: ...Publication 1747 UM005B EN P March 2006 4 Preface ...
Page 26: ...Publication 1747 UM005B EN P March 2006 2 4 Quick Start ...
Page 88: ...Publication 1747 UM005B EN P March 2006 7 4 Interpret the LED Indicators ...
Page 116: ...Publication 1747 UM005B EN P March 2006 8 28 Application Examples ...
Page 120: ...Publication 1747 UM005B EN P March 2006 A 4 Specifications ...
Page 130: ...Publication 1747 UM005B EN P March 2006 C 6 Lithium Battery Replacement Handling and Disposal ...
Page 134: ...Publication 1747 UM005B EN P March 2006 D 4 Interface Module Configuration Worksheets ...
Page 138: ......