IDEC MicroSmart Pentra - Manual (Page 44)

D EVICE A LLOCATION OF PID M ODULE
FC5A MicroSmart PID Module User’s Manual FC9Y-B1283 5-3
Example 4: Program control mode is selected in two PID modules
Module Type Type No.
Control Mode Occupied
Data Register
(Word)
CH0 CH1
PID Module
FC5A-F2MR2/FC5A-F2M2 Program control mode Fixed value control mode 590
FC5A-F2MR2/FC5A-F2M2 Program control mode Program control mode 590
FC5A-F2MR2/FC5A-F2M2 Fixed value control mode Fixed value control mode 190
FC5A-F2MR2/FC5A-F2M2 Fixed value control mode Fixed value control mode 190
Total 1560
Control Relay
The PID module occupies a maximum of 32 internal relays (minimum 8 internal relays) per module. The
occupied number of internal relays varies between the fixed value control mode and program control mode.
When both CH0 and CH1 are in fixed value control mode, 8 internal relays are occupied. When either CH0 or
CH1 is in program control mode, 32 internal relays are occupied.
Internal Relay Allocation
When both CH0 and CH1 are in fixed value control mode, the following 8 internal relays are allocated:
Offset from the
Control Relay
Description R/W
+0 Reading all parameters (PID module → CPU module data registers) R/W
+1 Loading initial values (CPU module ROM → data registers) R/W
+2 Writing all parameters (CPU module data registers → PID module) R/W
+3 Block 2 (CH0 basic parameters) writing R/W
+4 Block 3 (CH1 basic parameters) writing R/W
+5 Block 4 (CH0 initial setting parameters) writing R/W
+6 Block 5 (CH1 initial setting parameters) writing R/W
+7 Reserved R/W
When either CH0 or CH1 is in program control mode, the following 32 internal relays are allocated:
Offset from the
Control Relay
Description R/W
+0 Reading all parameters (PID module → CPU module data register) R/W
+1 Loading initial values (CPU module ROM → Data register) R/W
+2 Writing all parameters (CPU module data register → PID module) R/W
+3 Block 2 (CH0 basic parameters) writing R/W
+4 Block 3 (CH1 basic parameters) writing R/W
+5 Block 4 (CH0 initial setting parameters) writing R/W
+6 Block 5 (CH1 initial setting parameters) writing R/W
+7 Reserved R/W
+8 Block 10 (CH0 Step 0) writing R/W
+9 Block 11 (CH0 Step 1) writing R/W
+10 Block 12 (CH0 Step 2) writing R/W
+11 Block 13 (CH0 Step 3) writing R/W
+12 Block 14 (CH0 Step 4) writing R/W
+13 Block 15 (CH0 Step 5) writing R/W
+14 Block 16 (CH0 Step 6) writing R/W
+15 Block 17 (CH0 Step 7) writing R/W
+16 Block 18 (CH0 Step 8) writing R/W
+17 Block 19 (CH0 Step 9) writing R/W
+18 Block 30 (CH1 Step 0) writing R/W
+19 Block 31 (CH1 Step 1) writing R/W
+20 Block 32 (CH1 Step 2) writing R/W
+21 Block 33 (CH1 Step 3) writing R/W
+22 Block 34 (CH1 Step 4) writing R/W
+23 Block 35 (CH1 Step 5) writing R/W
+24 Block 36 (CH1 Step 6) writing R/W
+25 Block 37 (CH1 Step 7) writing R/W
+26 Block 38 (CH1 Step 8) writing R/W