schmersal PSC1 - Page 150

Installation manual
HB-37420-810-01-25F-EN PSC1-C-100 Installation manual - V2.2.docx Page 150 of 201
Version: 25F
Determination of the total response time
T
TOTAL
= T
IN
+ T
PLC
+ T
OUT
Example 1:
Input on expansion module, activation of SLS and processing in PLC, output on basic module
T
TOTAL
= T
IN_Exp
+ T
PLC
+ T
OUT_Base
= T
Cycle
+ 6 ms + T
Cycle
+ 0 ms = 2 * T
Cycle
+ 6 ms;
Example 2:
Input on basic module, activation of SLS and processing in PLC, output on expansion module
T
TOTAL
= T
IN_Base
+ T
PLC
+ T
OUT_Exp
= T
Cycle
+ T
Cycle
+ T
Cycle
+ 6 ms = 3* T
Cycle
+ 8 ms;
Example 3:
Input on expansion module, activation of SLS and processing in PLC, output on expansion
module
T
TOTAL
= T
IN_Exp
+ T
PLC
+ T
OUT_Exp
= T
Cycle
+ 6 ms + T
Cycle
+ T
Cycle
+ 8 ms = 3 * T
Cycle
+ 14 ms;