Efficient Networks S120 manual Bit, Signal status, description

Communication PROFIBUS DP/PROFINET IO 10.1 Communications according to PROFIdrive

Table 10-18 Description of the individual signals in Gn_STW

Bit	Name					Signal status, description
0	Find reference	Functions	If bit 7 = 0, then find reference mark request applies:
1	mark or flying		Bit		Meaning
2	measurement
			0		Function 1	Reference mark 1
3			1		Function 2	Reference mark 2
			2		Function 3	Reference mark 3
			3		Function 4	Reference mark 4
			If bit 7 = 1, then find flying measurement request applies:
			0		Function 1	Probe 1 rising edge
			1		Function 2	Probe 2 falling edge
			2		Function 3	Probe 3 rising edge
			3		Function 4	Probe 4 falling edge
			Note:
			•	Bit x = 1		Request function
				Bit x = 0		Do not request function
			• The following applies if more than 1 function is activated:
				The values for all functions cannot be read until each activated function
				has terminated and this has been confirmed in the corresponding status
				bit (STW.0/.1/.2/.3 "0" signal again).
			•	Find reference mark
				It is possible to search for a reference marker.
			•	Equivalent zero mark
			• On-the-fly measurement
				Positive and negative edge can be activated simultaneously.
4		Command		Bit 6, 5, 4		Meaning
5				000		-
6				001		Activate function x
				010		Read value x
				011		Terminate function
			(x: function selected via bit 0-3)
7		Mode	1		Measurement on-the-fly (fine resolution via p0418)
			0		Find reference marker (fine resolution via p0418)
0...	Reserved		-
12
13	Request cyclic absolute value		1		Request cyclic transmission of the absolute position actual value in
					Gn_XIST2.
					Used for (e.g.):
					• Additional measuring system monitoring
					• Synchronization during ramp-up
			0		No request
14	Parking encoder		1		Request parking encoder (handshake with Gn_ZSW bit 14)
			0		No request
15	Acknowledge encoder error		0/1		Request to reset encoder errors

376	Drive Functions
	Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4