DL06 Micro PLC User Manual; 3rd Edition Rev. E
4–16
Chapter 4: System Design and Configuration
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14
A
B
C
D
Example 1: V2100 584/984 Mode
Find the MODBUS address for User V location V2100. PLC Address (Dec.) + Mode Address
1. Find V-memory in the table. V2100 = 1088 decimal
2. Convert V2100 into decimal (1088). 1088 + 40001 =
3. Add the MODBUS starting address for the
mode (40001).
Example 2: Y20 584/984 Mode
Find the MODBUS address for output Y20. PLC Addr. (Dec.) + Start A Mode
1. Find Y outputs in the table. Y20 = 16 decimal
2. Convert Y20 into decimal (16). 16 + 2048 + 1 =
3. Add the starting address for the range (2048).
4. Add the MODBUS address for the mode (1).
Word Data Types
Registers
PLC Range
(Octal)
Input/Holding
(484 Mode)*
Input/Holding
(584/984 Mode)*
V-memory (Timers)
V0 - V377
3001/4001
30001/40001
V-memory (Counters)
V1000 - V1177
3513/4513
30513/40513
V-memory (Data Words)
V1200 - V1377
3641/4641
30641/40641
V1400 - V1746
3769/4769
30769/40769
V1747 - V1777
---
31000/41000
V2000 - V7377
---
41025
V10000 - V17777
---
44097
1. Refer to your PLC user manual for the correct memory mapping size of your PLC. Some of
the addresses shown above might not pertain to your particular CPU.
2. For an automated MODBUS/Koyo address conversion utility, go to our website
w
www.automationdirect.com
, and down load
download the EXCEL file
modbus_conversion.xls
located at: Tech Support > Technical Support Home page.
41089
For Word Data Types.... PLC Address (Dec.) + Appropriate Mode Address
Timer Current Values (V)
128
V0 – V177
0 – 127
3001
30001
Input Register
Counter Current Values (V)
128
V1200 – V7377
640 – 3839
3001
30001
Input Register
V-memory, user data (V)
1024
V2000 – V3777
1024 – 2047
4001
40001
Holding Register
2065
Outputs (Y)
320
Y0 - Y477
2048 – 2367
1
1
Coil
Control Relays (CR)
256
C0 - C377
3072 – 3551
1
1
Coil
Timer Contacts (T)
128
T0 - T177
6144 – 6271
1
1
Coil
*MODBUS: Function 04
