User`s manual

9 - 107 9 - 107
MELSEC-Q
9 CONTROL OPERATION INSTRUCTIONS
(5) Output conversion processing
Engineering value conversion is performed with the following expression.
BW MV
n
NMIN
100
NMAX NMIN
(6) Tracking processing
(a) When all of the following conditions hold, the BW value is output to the input value 1 (E1) or
input value 2 (E2).
1) The operation mode (MODE) is any of MAN, CMB, CMV and LCM.
2) The tracking bit (TRK) is 1.
E
n
MV
n
(b) When all of the following conditions hold, the BW value is output to the input value 1 (E1) or
input value 2 (E2).
1) The operation mode (MODE) is any of AUT, CAS, CAB, CCB, CSV, LCA and LCC.
2) The tracking bit (TRK) is 1.
3) BB1 of BB
is
1
E
n
MV
n
(7) Loop stop processing
(a) Setting 1 in SPA of the alarm detection (ALM) selects a loop stop.
A loop stop performs the following processing and terminates the S.SEL instruction.
1) BW retains the last value.
2) DMLA, MHA and MLA of the alarm detection (ALM) are turned to 0.
3) The operation mode (MODE) is changed to MAN.
4) BB1 to BB4 of BB are turned to 0.
(b) Setting 0 in SPA of the alarm detection (ALM) selects a loop run.
A loop run performs "(1) Engineering value conversion ".
ERROR
• When an operation error occurs Error code: 4100