Siemens CPU 414-2 - Jump Instructions; JU; JC; JCN

Jump Instructions
91
S7-400 Instruction List
A5E00267845-01
Jump Instructions
Jumping as a function of conditions.
Instruc-
Address
Description
Length
in
Execution Time in s
Instruc-
tion
Address
ID
Description
Length
in
Words
CPU 412 CPU 414 CPU 416 CPU 417
JU LABEL Jump unconditionally 2 0.6 0.36 0.24 0.21
Status word for: JU BR CC1 CC0 OV OS OR STA RLO /FC
Instruction evaluates: – – – – – – – – –
Instruction affects: – – – – – – – – –
JC LABEL Jump if RLO = “1” 2 0.6; 0.125
2)
0.36; 0.075
2)
0.24; 0.05
2)
0.21; 0.042
2)
JCN LABEL Jump if RLO = “0” 2 0.6/0.125
2)
0.36/0.075
2)
0.24/0.05
2)
0.21/0.042
2)
Status word for: JC, JCN BR CC1 CC0 OV OS OR STA RLO /FC
Instruction evaluates: – – – – – – – Yes –
Instruction affects: – – – – – 0 1 1 0
2)
If jump is not executed