Parker Products COMPAX-M /-S (L) Function codes, Commands, Procedure for transmitting a sign

Interfaces

		PLC data interface (function not available with COMPAX 1000SL)
Function codes of
	Function code		Command
commands	BCD coded
	F-code1	F-code2
	0	1	POSA
	0	2	POSR
	0	4	SPEED
	0	5	ACCEL
	0	6	GOTO
	1	3	Modify parameters (P1-P49)
	1	4	VP (valid parameter)
	1	6	Query status (S1-S12)

Unit	hardware
Connector	assignment / cable
Technical data

Procedure for transmitting a sign

Exception:

Process for receiving a sign

Exception:

♦PLC assigns the sign (4 bit) to I8...I11.

♦Once the data is stable, the PLC sets the UBN to "1".

♦COMPAX reads the sign and sets RDY to "0".

♦PLC sets UBN to "0".

♦COMPAX sets RDY to high.

If the data direction is then reversed, COMPAX can set the RDY line to "0". This is the case for the last sign of a status query.

♦PLC sets UBN to "1".

♦COMPAX assigns the sign (4 bit) to O8...O11.

♦COMPAX sets RDY to "1"

♦PLC reads the sign and sets UBN to "0".

♦COMPAX sets RDY to "0".

If the data direction is then reversed, COMPAX can set the RDY line to "1". This is the case for the last sign of a status response.

Configuration
Positioning and	control functions
Optimization	functions

Signal procedure using the example of a status query

PLC	PLC	COMPAX			COMPAX	PLC	PLC	COMPAX
Data	valid	valid	valid				valid	valid
4 Bit
COMPAX
Data				valid	valid		valid
4 Bit
PLC
UBN
COMPAX
RDY

t

It is important that the data ready message is only assigned after the data (when using PLC, one cycle later); i.e. once the data has been safely assigned.

Reset interface If a fault means that the signal "RDY" is missing, the interface can be reset to its initial status using signal "E" (start sign). The next "UBN" is then detected even though "RDY" is missing.

159

Interfaces

Accessories / options

Status

Parameter

Error list