YIO modular remote I/O

YIO modules for YSSC2P/YSSC3P/YMDS2P cards

• 5 Mbps half-duplex RS-485 bus
• Up to 16/8 modules on the bus
• 0.88/0.44ms poll interval
• 16/32 GPIO inputs or outputs on a single module

• YIO base module
• YI16 16 x inputs
• YO16N 16 x sinking outputs
• YO16P 16 x sourcing outputs
• YAO2 2 x analog outpus and encoder inputs
• YI32 32 x inputs
• YO32P 32 x sourcing outputs
• YI64MR 64 x inputs 2xIDC40 to Honda MR adapter
• YO64MR 64 x outputs 2xIDC40 to Honda MR adapter
• YO96MR 96 x outputs 3xIDC40 to Honda MR adapter
• YIO bus protocol

YIO Base Module

Provides the 8P8C bus connector and isolated DC power supply for all connected modules

YIO-A Board layout

J3: Phoenix Contact MC 1,5/3-ST-3,5 or equivalent

Address DIP switches on slave boards

YIO-B connects to YEX3 with a straight thru shielded or unshielded ethernet cable with T568A/T568B pinout

YIO-A Connection

YI16 16 x 24VDC inputs

The module provides 16 x 24VDC optoisolated inputs. Inputs are arranged in 4 groups. Each group can be wired for either sinking or sourcing.

YI16-A Board layout

TB1, TB2: Phoenix Contact MC 1,5/10-ST-3,5 or equivalent

Example connection:

YO16N 16 x MOSFET sinking outputs

The module provides 16 optoisolated MOSFET sinking (common positive) outputs. Each TB is either protected with a 0.5A fuse or using current-protected MOSFETs.

YO16N-A Board layout

TB1, TB2: Phoenix Contact MC 1,5/10-ST-3,5 or equivalent

Example connection:

YO16P 16 x MOSFET sourcing outputs

The module provides 16 optoisolated MOSFET sourcing (common ground) outputs. Each TB is either protected with a 0.5A fuse.

YO16P-A Board layout

TB1, TB2: Phoenix Contact MC 1,5/10-ST-3,5 or equivalent

Example connection:

YAO2P 2 x ±10V analog out, 2 x ABZ encoder in, 1 sinking out, 1 in

The module provides 2 channels, each:

• ±10V analog out, 16-bit DAC
• isolated ABZ encoder inputs, differential driver or 5V TTL, jumper selectable
• isolated open drain output
• isolated 24VDC input

J2, J3: 3M 10120-3000PE 20 pin MDR or equivalent connectors

J2/J3
1	AGND	11	AGND
2	AOUT	12
3		13
4	OUT drain (to load)	14	OUT source (PSU negative)
5	GND	15	GND
6	A	16	A/
7	B	17	B/
8	Z	18	Z/
9	IN	19	IN
10		20	+5VDC out *

YI32 32 x 24VDC inputs

The module provides 32 x 24VDC optoisolated inputs, sinking/sourcing jumper selectable. Threshold voltage is ~19V, current at 24VDC is ~2mA

YI32-A Board layout

DI: .1" pitch double row IDC 40 connector

X24: Phoenix Contact MC 1,5/3-ST-3,5 or equivalent

Jumpers 1-3 and 2-4 - sinking inputs, connect to +24V sourcing outputs
Jumpers 3-5 and 4-6 - sourcing inputs, connect to sinking (open collector) outputs

Example connection:

YO32P 32 x 24VDC sourcing outputs

The module provides 32 x 24VDC isolated outputs sourcing up to 150mA each. Overcurrent protected. The module also provides to the NC voltages and currents at each output, field power voltage and driver chips temperatures. With software controlled weak pull-ups on outputs broken connections can be diagnosed.

YO32P-B Board layout

DO: .1" pitch double row IDC 40 connector

X24: Phoenix Contact MC 1,5/3-ST-3,5 or equivalent

Jumpers 1-3 and 2-4 - pins DO.5 DO.6 (COM) connectedd to GND
Jumpers 3-5 and 4-6 - pins DO.5 DO.6 (COM) connectedd to +24V

YI64MR 64 x inputs 2xIDC40 to Honda MR adapter

The adapter board with 2 IDC40 connectors for YI32 uplink and MR-50M + MR-20M with QX535/QX539 compatible pinout

YO64MR 64 x outputs 2xIDC40 to Honda MR adapter

The adapter board with 2 IDC40 connectors for YO32 uplink and MR-50F + MR-20F with QX539 compatible pinout

YO96MR 64 x outputs 3xIDC40 to Honda MR adapter

The adapter board with 3 IDC40 connectors for YO32 uplink and 2xMR-50F with QX535 compatible pinout

YIO bus protocol

RS-485, half-duplex, 5Mbps, 8-N-1, LSB first.

Controller request:

byte 0	1	2 .. N+1	N+2
0x80 | addr	code	arg1 .. argN	CRC-8

Slave reply:

byte 0	1	2 .. M+1	M+2
addr	code	dataM .. dataM	CRC-8

Slave address is 0..15. The polynomial used for CRC-8 is 0x8c: x⁸ + x⁵ + x⁴ + 1. A slave must start reply transmission within 10us after receiving a request.

Request code 1: Identify

Request:

byte 0	1	2
0x80 | addr	1	CRC-8

Reply:

byte 0	1	2	3
addr	1	1=YI16 2=YO16N/P 5=YAO2 0x11=YI32 0x12=YO32P	CRC-8

Request code 2: Read discrete outputs

Request:

byte 0	1	2
0x80 | addr	2	CRC-8

Reply:

byte 0	1	2	3	4
addr	2	outputs 7..0	outputs 15..8	CRC-8

Request code 3: Set discrete outputs

Request:

byte 0	1	2	3	4
0x80 | addr	3	outputs 7..0	outputs 15..8	CRC-8

Reply:

byte 0	1	2
addr	3	CRC-8

Request code 4: Read discrete inputs

Request:

byte 0	1	2
0x80 | addr	4	CRC-8

Reply:

byte 0	1	2	3	4
addr	4	inputs 7..0	inputs 15..8	CRC-8

Request code 5: Set analog outpus / read encoders counters

Request:

byte 0	1	2	3	4	5	6	7
0x80 | addr	5	0 idx1 0 idx0 0 out1 0 out0	aout 0 low	aout 0 hi	aout 1 low	aout 1 hi	CRC-8

Reply:

byte 0	1	2	3	4	5	6	7
addr	5	0 idx1 0 idx0 0 in1 0 in0	enc 0 low	enc 0 hi	enc 1 low	enc 1 hi	CRC-8

Request code 0x13: Set discrete outputs

Request:

byte 0	1	2	3	4	5	6	7
0x80 | addr	0x13	outputs 7..0	outputs 15..8	outputs 23..16	outputs 31..24	0x01=enabe pull-downs	CRC-8

Reply:

byte 0	1	2	3	4	5	6	7
addr	0x13	0x80=overcurrent, 0x40=undervoltage, 0..7 data type	data0_lo	data0_hi	data1_lo	data1_hi	CRC-8

Request code 0x14: Read discrete inputs

Request:

byte 0	1	2
0x80 | addr	0x14	CRC-8

Reply:

byte 0	1	2	3	4	5	6
addr	0x14	inputs 7..0	inputs 15..8	inputs 23..16	inputs 31..24	CRC-8

Once per second sync broadcast

Request:

byte 0
0xED

Reply: none