Stable channel for motherboard PM856K01


External connections:
• Excitation current to the load cells
• 2 or 4 analog inputs for load cell signals
• 4 analog outputs, voltage or current
• 8 digital inputs for control signals
• 8 digital outputs
• +24 V supply for external units, max 0.5 A
• Ethernet connection
• Service and multiple control units
• 2 serial interfaces of type RS-232 for
external displays, control, etc.

Model: PM856K01

Category: SKU: PM856K01 Tag:
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Stable channel for motherboard PM856K01

Stable channel for motherboard PM856K01


Use the procedure below to install the PM856K01 processor unit in single configuration:

1. If already connected, remove the CEX-Bus termination from the side of the PM891 processor unit.

2. Mount the PM891 processor unit, the communication interfaces, and the S800 I/O units on the DIN-rail. The communication interfaces for PM856K01 is connected to the CEX-Bus to the left of the processor unit. The S800 I/O units for PM891 is connected through the optical ModuleBus at the bottom of the processor unit.

3. Re-insert the bus terminations into the communication units farthest from the processor unit. For CEX-Bus, use the TB850 termination plug (TB851, if CEX-Bus Extension cable TK850 is used. If no units are used on the CEX-Bus, no bus termination is required.

4. Provide termination for redundancy, by using the termination plug TB853 RCU Control Link Terminator, at the RCU Control Link connector at the top of the processor unit.

5. Provide cable connections:

a. Connect the power leads to screw terminals L+ and L-. If applicable, connect the power supervision signals from SS82x to the screw terminals SA and SB.

b. Connect the Control Network cables to CN1 (single connection) or CN1 + CN2 (redundant connection).

c. Connect the Control Builder to COM4 with cable TK212 (if required, for changing an IP address). Otherwise connect the Control Builder to the Control Network.



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