Specifications

3. Special Devices
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3-2
3.2. Special Data Registers
Ϩʳ PLC System Information Ϩʳ Error Check Ϩʳ A/D, D/AConversion (Only EX Model)
D1000 Watchdog timer (WDT) value
D1061
System detailed error code D1056 Present value of analog input channel 0 (CH0)
D1001
DVP model no. + memory cap. /type
D1065
Syntax error code D1057 Present value of analog input channel 1 (CH1)
D1002
Program memory capacitor
D1066
Loop error code D1058 Present value of analog input channel 2 (CH2)
D1003 Sum of program memory D1067 Algorithm error code D1059 Present value of analog input channel 3 (CH3)
D1004
Error flag number
D1068
Lock the algorithm error address
D1110
Average of analog input channel 0 (CH 0)
D1005
System message
D1111
Average of analog input channel 0 (CH 1)
D1008
Monitor the STEP position that occurs
when timer time out
D1069
Step number of errors associated with flags
M1065~M1067
D1112
Average of analog input channel 0 (CH 2)
D1010
Current scan time (unit: 0.1ms) Ϩʳ System Usage
D1113
Average of analog input channel 0 (CH 3)
D1011
Minimum scan time (unit: 0.1ms)
D1116
Analog output channel 0 (CH 0)
D1012
Maximum scan time (unit: 0.1ms)
D1117
Analog output channel 1 (CH 1)
D1020 X00~X07 input delay setting (0~15ms)
D1050

D1055
PLC will automatically convert the ASCII data
saved in D1070~D1085 to HEX. Refer to chapter 7
Application Commands for more information.
D1021 X10~X17 input delay setting (0~15ms)
D1022 AB phase counter mode selections
D1025 Communication error code
D1118
For EX model only. It is the filter wave time
setting between the A/D conversions, and with
the default setting as 0 and the unit as 1ms, all
will be regarded as 5ms if D1118Љ5
D1028
Index register E Ϩʳ PLC System Setting
D1029
Index register F
D1119
System used (PLC operation mode)
D1030 Output numbers of Y0 pulse (Low word) D1121 PLC communication address
D1031 Output numbers of Y0 pulse (High word)
D1070

D1085
When the PLC built-in RS-485 communication
command receives feedback signals from receiver,
the signals will be saved in the registers
D1070~D1085. User can use the contents saved in
the registers to check the feedback data. Refer to
chapter 7 for more details.
Ϩʳ RS-485 Serial Communication Port
D1032 Output numbers of Y1 pulse (Low word) D1120 RS-485 communication protocol
D1033 Output numbers of Y1 pulse (High word) D1122 Residual words of transmitting data
D1123 Residual words of receiving data
D1124 Start character definition
D1125 First ending character definition (ETX1)
D1038
When PLC MPU is master, the setting of
data response delay time. Time unit is
0.1ms.
D1089

D1099
When the PLC built-in RS-485 communication
command is executed, the transmitting signals will
be stored in the registers D1089~D1099. User can
use the contents saved in the registers to check the
feedback data. Refer to chapter 7 for more details.
D1126 Second ending character definition (EXT2)
D1039 Constant scan time (unit: ms) D1129 RS-485 time-out setting (ms)
Ϩʳ Step Ladder Diagram D1130 MODBUS return error code record
D1040
ON state number 1 Ϩʳ Auxiliary System Check Information
D1041
ON state number 2
D1136
System used (Error diagnosis)
D1042
ON state number 3
D1137
Address of operator error occurs
D1043
ON state number 4
D1256

D1295
ES: MODRW command of RS-485 is built-in. The
characters that sent during executing is saved in
D1256-D1295. User can check according to the
content of these registers. (Using MOV, DMOV,
BMOV to move the data in this area in version 4.9.)
D1140 Special extension module number
D1044
ON state number 5
D1141
System used (Self-diagnosis code)
D1045
ON state number 6
D1142
Input points (X) of extension unit
D1046
ON state number 7
D1143
Output points (Y) of extension unit
D1047
ON state number 8
D1296

D1311
ES: PLC system will convert ASCII in the content of
the register that user indicates to HEX. (Using
MOV, DMOV, BMOV to move the data in this area
in version 4.9.)