Section 3 Modules Interfaces
M&I – AC 900F Controller 25
• Display and control elements
• Housing color (gray)
• Convection cooling without temperature derating
• Main memory with error detection/correction
• Display (dot matrix LCD display) as an optional accessory
Interfaces
The PM CPU module features the following on-board interfaces:
Ethernet interfaces
–ETH1, Control Net
– ETH2, redundancy link / depending on application
– ETH3, Control Net / depending on application
– ETH4, (only PM 902F) depending on application
Serial interfaces
– SER1, depending on application
– SER2, depending on application
– DIAG, diagnostics, settings and radio clock
Power supply unit
– DC-IN +/-24 V DC
Coupler bus
–C1, C2
I/O bus
– Connection on the right
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