PCB Design, STM32 SPI

Dimensions:
Minimised, to suit.

Supply Power:
24VDC.

Output Logic Level & Power:
24VDC, PNP, 1A per output channel with 8 off being configurable as NPN or PNP on motor control connector.

Input Logic Level & Power:
24VDC, PNP, 8 off being configurable as NPN or PNP on motor control connector.
Inputs & Ouputs to be SPI for speed and future proofing

I/O Power Distribution:
- 24VDC.
o Bank of 24V & 0V next to each I/O section.

I/O Isolation.
All I/O to be optically isolated.

I/O Count:
32 pluggable Inputs:
- 8 of which to include local (on same plug) power (24Vdc & 0Vdc) & teach output (Photocell Connections). I.e. 8 time 4 way connectors (24v, 0V, Signal, Teach (switched 24V)).
- 8 of which to be echoed between machine control Input connector & customer Input connector.
- 8 of which to be echoed between machine control Input connector & Bespoke Control connector.
- 6 of which to be echoed between machine control Input connector & Ray connector.
32 pluggable Outputs:
- 8 of which to be echoed between machine control Output connector & single pole pluggable change over relays rated at 230VAC/24VDC 6A minimum. Outputs from relays to be fused at 5A and taken to Customer Output connector.
- 8 of which to be echoed between machine control Output connector & Bespoke Control connector.
- 6 of which to be echoed between machine control Output connector & Ray connector.
- 6 to be PT100 temperature sensing inputs

I/O Indication:
Led indicators for all Inputs & Outputs.

Motor control.
Analogue I/O:
- 5 x 0-10Vdc analogue Outputs.
Encoder Inputs:
- 5 x Standard DIO NPN Inputs (configurable PNP/NPN Inputs)
Control Inputs.
- 2 x NPN (configurable PNP/NPN Inputs).
Control Outputs.
- 2 x NPN (configurable PNP/NPN Outputs).
Serial Connection:
- RS485. Full Duplex.
- RS232
- Ethercat an option?
Processor:
- Capable of servicing I/O at a 1ms cycle time. Maybe STM32. Processor pluggable