Owner's manual

4. Commissioning
4−33
Festo P.BE−CPX−CMAX−SYS−EN en 0908NH
2. Step: Specify setpoint values
Allocation of the control bytes (step 2)
Bit B7 B6 B5 B4 B3 B2 B1 B0
CCON
OPM2 OPM1 LOCK  RESET BRAKE ST OP ENAB L E
Byte 1
0 1 0 0 0 1/0 1 1
CPOS
 CLEAR TEACH JOGN JOGP HOM ST ART HOLD
Byte 2
0 0 0 0 0 0 0 0
CDIR
 FAST XLIM VLIM CONT COM2 COM1 ABS
Byte 3
0 1 0 0 0 0 0 0
Secondary
setpoint
Byte 4: Setpoin t value of the speed: in percentage of the specified value Sp eed in direct
mode" (PNU540): 70% Z 46h Z 0100 0110b
Primary
setpoint
Byte 5 ... 8: Setpoi nt value of the position in the con figur ed system of units (metric/lin ear):
70 mm Z 7000 Z 00001B58h Z 0000 0000 0000 0000 0001 1011 0101 1000b
No change in the status bytes:
Allocation of the status bytes (step 2)
Bit B7 B6 B5 B4 B3 B2 B1 B0
SCON
OPM2 OPM1 FCT_MMI 24VL FAUL T WARN OPEN EN AB LED
Byte 1
0 1 0 1 0 0 1 1
SPOS
REF STILL DEV MO V TEA CH MC ACK HOLD
Byte 2
1 x x x x x 0 0
SDIR
 FAST XLIM VLIM CONT COM2 COM1 ABS
Byte 3
x x x x x x x x
Secondary
actual
value
Byte 4: Acknowledgement of the actual value of the speed in percentage of the set value
Speed in direct mode" (PNU540).
Primary
actual
value
Byte 5 ... 8: Acknowledgement of the actual value of the position or force in the
configured system of units.
After setting the setpoint values, wait at least 1 bus cycle
(recommendation: 1 PLC cycle) so that the setpoint values
have definitely been transmitted to the CMAX before starting.