User`s manual

9 - 100 9 - 100
MELSEC-Q
9 CONTROL OPERATION INSTRUCTIONS
Specified position Symbol Name Recommended range
*1
Unit Data format
Standard
value
Store
+20
+21
ML
Output lower
limit value
-10 to 110 %
Real
number
0.0 U
+22
+23
SV1 Setting time 1
+52
+53
SV16 Setting time 16
0 to 999999 s
Real
number
0.0 U
+54
+55
MV1 Setting output 1
Loop tag
memory
*2
+84
+85
MV16
Setting output
16
-10 to 110 %
Real
number
0.0 U
*1: The data of the item(s) where the values within the recommended range are given in the parentheses are stored by the system.
Users cannot set the data.
*2: The loop tag memory and loop tag past value memory occupy a total of 128 words. (Refer to Section 3.3.1 for details.)
(2) Execution cycle ( T)
Set the execution cycle in SD1500 and SD1501 as real numbers.
Processing contents
(1) Output type
The output type is determined by the combination of the operation mode (MODE) and
operation type (TYPE) as indicated below.
Operation mode
(MODE)
Operation type
(TYPE)
Operation
MAN, CMB, CMV, LCM, LCA, LCC Operation stopped at current SV and MV
0 Hold type operation
AUT, CAB
1 Return type operation
CAS, CCB, CSV Cyclic type operation
(2) 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.PGS instruction.
1) BW retains the last value.
2) MHA and MLA of the alarm detection (ALM) are turned to 0.
3) The operation mode (MODE) is changed to MAN.
4) BB1 to BB3 of BB are turned to 0.
(b) Setting 0 in SPA of the alarm detection (ALM) selects a loop run.
A loop run performs "(3) SV count-up processing".