128 Rockwell Automation Publication 1756-UM001M-EN-P - February 2012
Chapter 7 Manage Controller Communication (connections)
Remote Connections
Use remote connections when the communication module is in a chassis that is
remote from the controller. The number of connections a communication
module supports determines how many remote connections the controller can
access through that module.
Table 37 - Remote Connections
Remote Connection Type Device Quantity Connections per
Device
Total Connections
Remote ControlNet communication module
I/O configured as direct connection (none)
I/O configured as rack-optimized connection
0 or
1
Remote I/O module over a ControlNet network (direct connection) 1
Remote EtherNet/IP communication module
I/O configured as direct connection (none)
I/O configured as rack-optimized connection
0 or
1
Remote I/O module over a EtherNet/IP network (direct connection) 1
Remote device over a DeviceNet network
(accounted for in rack-optimized connection for local 1756-DNB)
0
DeviceNet module in a remote chassis 2
Other remote communication adapter 1
Produced tag
Each consumer
1
1
Consumed tag 1
Message (depending on type) 1
Block-transfer message 1
Total
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