Removing The Controller Cover - Peak IOM57 Installation Instructions Manual

Table 7: SA/FC bus device address descriptions (Part 2 of 2)
Device address Use on description
4 to 127 Used for MS/TP master devices (controllers) that are hardwired to an SA bus or FC bus.
(Switch 128 Off)
0 to 3 Reserved addresses for wired subordinate devices (not for use on controllers)
(Switch 128 ON)
Note: PEAK controllers ship with switch 128 ON and the remaining address switches off rendering the
controllers wired subordinate devices, which do not operate on MS/TP buses.
4 to 127 Valid for MS/TP Master controllers on wireless FC buses only.
(Switch 128 ON)
Note: Do not connect a controller with switch 128 ON to an active, hard-wired SA or FC bus. When a
controller with switch 128 ON and a device address from 4 to 127 is connected to a wired field bus, the
entire field bus is rendered inoperable until the controller is disconnected or switch 128 is set to OFF.
Refer to the MS/TP Communications Bus Technical Bulletin (LIT-12011034) for more information on controller
device addresses and how to set them on MS/TP buses.

Removing the controller cover

IMPORTANT: Electrostatic discharge can damage controller components. Use proper electrostatic discharge
precautions during installation, setup, and servicing to avoid damaging the controller.
IMPORTANT: Disconnect all power sources to the controller before you remove the cover and change the
position of any jumper or the EOL switch on the controller. Failure to disconnect power before changing a jumper
or EOL switch position can result in damage to the controller and void any warranties.
The controller cover is held in place with four plastic latches that extend from the base and snap into slots on the
inside of the housing cover.
To remove the controller cover, complete the following steps:
1. Place your fingernails under the two cover lift tabs on the sides of the housing cover and gently pry the top of
the cover away from the base to release the cover from the two upper latches. See Figure 2 for information
about the controller.
2. Pivot the top of the cover further to release it from the lower two latches.
3. Replace the cover by placing it squarely over the base, and then gently and evenly push the cover on to the
latches until they snap into the latched position.
UI current loop jumpers for IOM5711
The current loop fail-safe jumpers are on the circuit board under the controller cover near the UI terminals. When a
UI is defined in the system software as a 4 to 20 mA analog input and the UI's current loop jumper is in the default
disabled position, the 4 to 20 mA current loop circuit opens whenever power to the controller is interrupted or off.
The following figure shows this setup
Figure 10: Current loop jumper positions
Jumper positioned
on pins 2 and 3.
Jumper
Pins
1 2
3
PEAK® IOM57 Input/Output Modules Installation Instructions
Jumper positioned
on pins 1 and 2.
Top of
Control
1 2 3
Jumper Positions
Viewed from the
Bottom of IOM
Disabled
(Default)
16
1 2 3
Enabled