Siemens S7-1200 - Phasing

Technology instructions
9.3 Motion control
S7-1200 Programmable controller
446 System Manual, 03/2014, A5E02486680-AG
P = Pulse
D = Direction
CPU on-board outputs
High-speed SB outputs
Low-speed
SB outputs
2 - 20
KHz (all
with
direction
output)
PTO4 P D
Ex. 3:
4 - 200
KHz (no
direction
output)
PTO1
P
PTO2
P
PTO3
P
PTO4
P
Ex. 4:
2 - 100
KHz;
2 - 200
KHz (all
with
direction
output)
PTO1
P
D
PTO2
P
D
PTO3
P
D
PTO4 P D
9.3.1
Phasing
You have four options for the "Phasing" interface to the stepper/servo drive. These options
are as follows:
● PTO (pulse A and direction B): If you select a PTO (pulse A and direction B) option, then
one output (P0) controls the pulsing and one output (P1) controls the direction. P1 is high
(active) if pulsing is in the positive direction. P1 is low (inactive) if pulsing is in the
negative direction:
● PTO (count up A and count down B): If you select a PTO (count up A and count down B)
option, then one output (P0) pulses for positive directions and a different output (P1)
pulses for negative directions: