Siemens S7-1200 - Page 444

Technology instructions
9.3 Motion control
S7-1200 Programmable controller
444 System Manual, 03/2014, A5E02486680-AG
Table 9- 25 Limit frequencies of pulse outputs
Pulse output
Frequency
Onboard 4 PTO: 2 Hz ≤ f ≤ 1 MHz, 4 PTO: 2 Hz ≤ f ≤ 100 KHz, or any combination of
these values for 4 PTOs.
1 2
Standard SB
2 Hz ≤ f ≤ 20 KHz
High-speed SBs
2 Hz ≤ f ≤ 200 KHz
1
See the table below for four possible CPU 1217C output speed combinations.
2
See the table below for four possible CPU 1211C, CPU 1212C, CPU 1214C, or CPU 1215C output speed combinations.
CPU 1217C example output speed configurations
Note
The CPU 1217C can generate pulse outputs up to 1 MHz, using the onboard differential
outputs.
The examples below show four possible output speed combinations:
● Example 1: 4 - 1 MHz PTOs, no direction output
● Example 2: 1 - 1 MHz, 2 - 100 KHz, and 1 - 20 KHz PTOs, all with direction output
● Example 3: 4 - 200 KHz PTOs, no direction output
● Example 4: 2 - 100 KHz PTOs and 2 - 200 KHz PTOs, all with direction output
P = Pulse
D = Direction
CPU on-board outputs
High-speed SB outputs
Standard
SB
outputs
1 MHz Outputs (Q) 100 KHz Outputs (Q) 200 KHz Outputs (Q) 20 KHz
Outputs
(Q)
0.0+ 0.1+ 0.2+ 0.3+ 0.4 0.5 0.6 0.7 1.0 1.1 4.0 4.1 4.2 4.3 4.0 4.1
0.0-
0.1-
0.2-
0.3-
Ex. 1:
4 - 1
MHz
(no
direction
output)
PTO1 P
PTO2
P
PTO3
P
PTO4 P
Ex. 2: 1 -
1 MHz; 2
- 100
and 1 -
20 KHz
(all with
direction
output)
PTO1
P
D
PTO2
P
D
PTO3
P
D
PTO4 P D