Assembling a Modicon M340 Station
Original instructions
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Introduction
WARNING
MODULE DESTRUCTION - LOSS OF APPLICATION
Disconnect all power to the rack before the installation of the BMX P34 20x0 CPUs
Failure to follow these instructions can result in death, serious injury, or equipment damage.
This topic provides steps for installing the Modicon M340 communication modules and CPUs on the rack.
Modicon M340 modules and processors are powered by the backplane bus.
Fitting operations (installation, assembly, and disassembly) are described below.
Elsewhere in this guide is a discussion of the proper address locations on the backplane for BMX NOE 01x0 and Modicon M340 CPUs.
Installing a Processor
A BMX P34 20x0 processor is always installed on the rack in slot marked 00 (address 0).
The following diagram shows a BMX P34 20x0 processor mounted on a BMX XBP rack in the slot marked 00 (address 0):
NOTE: Before installing a module, take off the protective cap from the module connector located on the backplane.
Mounting Instructions
NOTE: The mechanical assembly instructions for the BMX NOE 01x0 and the BMX P34 20x0 CPUs are identical.
To mount a module or processor on the rack:
Step
Action
Illustration
1
Position the two pins on the reverse side of the module or CPU (at the bottom) in the corresponding slots on the rack.
Note: Before positioning the pins, make sure you have removed the protective cover.
The following diagram describes steps 1 and 2:
2
Incline the module or CPU towards the top of the rack so that the module sits flush with the back of the rack. It is now set in position.
3
Tighten the safety screw to ensure that the module or CPU is held in place on the rack.
The recommended tightening torque is between 0.4 and 1.5 Nm .
The following diagram describes step 3: