BEI Sensors MHK5 Absolute Hollow Shaft Encoder - Manual (Page 26)

In order to replace the encoder later without a new
Teach-In procedure, the total measuring range
determined with the Teach-In should be transferred
into the system configuration. For this the „total
resolution“ must be entered into the parameter field
„desired measuring units“ (cp. 5.1.2) and the
reference (cp. 5.1.3) must be set to “maximum total
measuring range“. When setting the parameters it
should be observed that the code sequence is
correct (the setting of the counting direction in
commissioning mode has to be transferred to the
system configuration). Subsequently the
commissioning mode can be switched off and the
encoder can be used in normal mode.
5.3.4 Preset value
The preset function is similar to the procedure
described in section 4.2.2. There is only one
difference: When using the manufacturer-specific versions 2.1 or 2.2 there is an acknowledgement
(bit 31 in the input double word is set to 1):
Status bits Data bits
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Master →
MHM5
1 0 0 0 0 0 0 Transfer of the required position value (= preset value)
MHM5 →
Master
1 0 0 0 0 0 1 New = required position value is transferred
Master →
MHM5
0 0 0 0 0 0 0 Reset bit 31 – normal mode
MHM5 →
Master
0 0 0 0 0 0 1 New = required position value is transferred
Page 26 BEI Sensors Profibus Manual serie M Revision 03/10