9–6 EPM 9450/9650 ADVANCED POWER QUALITY METERING SYSTEM – INSTRUCTION MANUAL
USING THE PSIO WITH MULTIPLE I/O MODULES CHAPTER 9: EXTERNAL I/O MODULES
9.3 Using the PSIO with Multiple I/O Modules
Figure 9-5: PSIO Used with Multiple I/O Modules
Note
As shown, the PSIO must be to the right of I/O Modules when viewing the side label.
9.3.1 Steps for Attaching Multiple I/O Modules
1. Each I/O module in a group must be assigned a unique address. See the GE
Communicator Instruction Manual for details on configuring and
programming the I/O Modules.
2. Determine how many power sources (such as the PSIO) are needed for the
number of modules in use. See Section 5.6.2 for details.
3. Starting with the left module and using a slotted screwdriver, fasten the first
I/O Module to the left Mounting Bracket. The left Mounting Bracket is the one
with the PEM. Fasten the internal screw tightly into the left Mounting Bracket.
4. Next, slide the female RS485 port into the male RS485 side port to connect the
next I/O module to the left module. Fasten together enough to grab, but do
not tighten yet.
5. One by one combine the modules together.
6. If you require an additional power supply, attach a PSIO (power supply) to the
right of the group of I/O Modules it is supplying with power.
7. Once you have combined all the I/O modules together for the group, fasten
tightly. This final tightening will lock the whole group together as a unit.
8. Attach the right Mounting Bracket to the right side of the group using small
Phillips head screws provided.
9. If not mounting on a DIN rail, mount the group of modules on a secure, flat
surface. This procedure will insure that all modules stay securely connected.
Female
RS485
side Port
Mounting
bracket
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