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Installation Instructions
FLEX I/O ControlNet Redundant Media
Adapter
(Cat. No. 1794-ACNR)
1
2
3a
1 ControlNet
2 Indicators
3a
ControlNet network cable BNC connector A
3b
ControlNet network cable BNC connector B (1794-ACNR15 only)
4
ControlNet Node selection thumbwheel switches
5
ControlNet programming terminal connector port
6
Module locking tab
7 +24V dc connections
8
24V common connections
9
Flexbus connector
3b
6
Component Identification
Adapter module
45
9
8
7
FLEX I/O is a trademark of Rockwell Automation.
Publication
1794-5.18 – September 1996
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FLEX I/O ControlNet Redundant Media Adapter2
European
If this product has the CE mark it is approved for installation within the
European Union and EEA regions. It has been designed and tested to meet
the following directives.
Union Directive Compliance
EMC Directive
This product is tested to meet Council Directive 89/336/EEC
Electromagnetic Compatibility (EMC) and the following standards, in
whole or in part, documented in a technical construction file:
• EN 50081-2EMC – Generic Emission Standard, Part 2 – Industrial
Environment
• EN 50082-2EMC – Generic Immunity Standard, Part 2 – Industrial
Environment
This product is intended for use in an industrial environment.
Low V
oltage Directive
This product is tested to meet Council Directive 73/23/EEC Low Voltage,
by applying the safety requirements of EN 61131–2 Programmable
Controllers, Part 2 – Equipment Requirements and Tests.
For specific information required by EN 61131-2, see the appropriate
sections in this publication, as well as the following Allen-Bradley
publications:
• Industrial Automation Wiring and Grounding Guidelines For Noise
Immunity, publication 1770-4.1
• Guidelines for Handling Lithium Batteries, publication AG-5.4
This equipment is classified as open equipment and must be mounted in
an enclosure during operation to provide safety protection.
A
B
C
Publication
1794-5.18 – September 1996
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FLEX I/O ControlNet Redundant Media Adapter 3
1. Position the ControlNet adapter module (A) on a 35 x 7.5mm DIN rail
(B) (A-B pt. no. 199-DR1; 46277-3; EN 50022) at a slight angle.
2. Hook the lip on the rear of the adapter (A) onto the top of the DIN rail
(B), and rotate the adapter module onto the rail.
3. Press the adapter module down onto the DIN rail until flush. Locking
tab (C) will snap into position and lock the adapter module to the DIN
rail.
4. If the adapter module does not lock in place, use a screwdriver or
similar device to move the locking tab down while pressing the
adapter module flush onto the DIN rail and release the locking tab to
lock the adapter module in place. If necessary, push up on the locking
tab to lock.
5. Connect the adapter wiring as shown under “Wiring” later in this
document.
ATTENTION: Make certain that the hook on the
terminal base is properly hooked into the adapter. Failure
!
6. Complete the adapter mounting as shown below.
to lock the hook into the adjacent base/adapter can result
in loss of communication on the backplane.
Publication
1794-5.18 – September 1996