Rockwell Automation 1756-L55M12, Selection Manual, Page: 47 / 88

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1756-SG001G-EN-P — March 2004
56AMXN AutoMax
Network and
RE Remote I/O
The 56AMXN module connects a ControlLogix system to an AutoMax DCS network or
to an AutoMax Remote I/O network. The traditional Reliance Electric Systems solution
is based on an AutoMax controller and architecture. DCSNet is the main
communications, data, and control network or “backbone”. RE RIO is the Remote I/O
architecture to network devices such as I/O and MMI or HMI operator stations.
You configure the 56AMXN as a generic module. The module supports scheduled data
up to 250 words of input, 248 words of output, and 250 words of status data. The
module supports RPIs from .2 to 750ms.
As a: The 56AMXN module:
DCSNet master
y
Scans up to 55 drops with 32 words in and 32 words out per drop
y
Transmits 8 words of global broadcast data every 2.8ms
y
Maintains standard drop 0 diagnostic counters
DCSNet slave
y
Acts as any drop number from 1 to 55, with drop depth from 1 to 55 (“active drops”)
y
Monitors input and output data on other drops on the network (“monitored drops”)
RE remote I/O master
y
Scans up to 7 drops, with up to 248 words of output data and 250 words of input data
y
Maintains standard diagnostic counters
Cat. No.
Communication
Networks and
Supported Modes
Cable
Power Dissipation,
Max. Backplane Current
(mA) at 5V Backplane Current
(mA) at 24V
56AMXN
DCS network: master or
slave
RE remote I/O network:
master
Drop cable (612574-36R, 3ft long with 9-pin D-shell connectors) and passive
tap (M/N 57C380, BNC connectors) connects the module to the network cable.
For DCS, the network cable can be RG-59/U or RG-11/U.
For remote I/O, the cable must be RG-59/U.
5.0 W 650 mA 75 mA
Certifications: UL, CSA (Class I, Division 2, Group A, B, C, D), CE