Mitsubishi MELSEC-Q series Programming Manual page 200

S. SEL
(5) Output conversion processing
Engineering value conversion is performed with the following expression.
NMAX NMIN
BW MV
n
100
(6) Tracking processing
(a) When all of the following conditions hold, the operation result 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.
En = MVn
(b) When all of the following conditions hold, the operation result 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
En = MVn
(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 ".
Operation Error
In the following cases, the error flag (SM0) turns ON and the error code is stored in SD0.
Error code
When an operation error occurs
4100
When the values of
non-normalized number
When the values of
4140
non-normalized number
4141 When an operation error occurs
198
NMIN
Error definition
, , , are either a non-numeric or
S1 D1 S2 D2
, , , are either a non-numeric or
S1 D1 S2 D2
QnPHCPU QnPRHCPU
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QnUDPVCPU
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