The PCD2.M5540 is a flat case construction controller. Consequently this CPU will have 8 slots for PCD2 I/Os modules with possible extension to 1023 digital data points.
Short Product Description Saia®PCD2.M5540
User program memory
1 MByte RAM
Backup memory (Flash)
1 MByte onboard,
external with optional PCD7.R500 or PCD7.R5x1 in slot M1 or M2
Data Buffering
Lithium Battery CR 2032
Max. local Digital I/O
1023 (with PCD3.Cxxx extension holder
and in future with PCD2.Cxxxx in development)
Onboard I/O
6 inputs 24V, 4 first usable as interrupt inputs
2 transistors outputs
SPI interface
I/O Slots 0..3 for intelligent module
Port #0 (D-Sub)
Com/PGU - RS 232 up to 115.2 KBit/s
(suitable for external modem – full handshake)
Port #0 (Terminals)
RS 485 up to 115.2 KBit/s shared with Com/PGU
Port #1 (optional)
Com. module PCD7.F1xx on socket A1
Port #2 (optional)
Com. module PCD7.F1xx on socket A2
Port #101..131 (optional)
Com. module PCD2.F2xxx on I/O slot 0..3
Port #10 (D-Sub) or port #3
S-Net/MPI - RS 485 up to 1.5 MBit/s
RS 485 up to 115.2 KBit/s for free protocol
Port #8 (optional)
For DP-Master or CAN communication modules
on “C socket” both in development
