Ethernet Communications Modules, 3rd Edition, Rev. D
5-30
Chapter 5: MODBUS TCP for H0/H2/H4-ECOM100
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A
B
C
D
H0/H2/H4 -ECOM100 System Memory
*For clients that only support function code 3 to read word data.
H0/H2/H4 - ECOM100
Modbus
Address Range
(Decimal)
Words
(16-bit)
Word Descriptions
Access
Module Version
Information
317501 – 317506
(417501 – 417506)*
6
1 - OS Major Version
2 - OS Minor Version
3 - OS Build Version
4 - Booter Major Version
5 - Booter Minor Version
6 - Booter Build Version
Read Only
317507 – 317510
(417507 – 417510)
–
Reserved
–
Device Data
317511 – 317600
(417511 – 417600)*
90
1 - Version of Device
2 - Family
3 - Processor
4 - Module Type
5 - Status Code
(6 – 8) - Ethernet Address 9 - RAM
Size
10 - Flash Size
11 - Batt RAM Size
12 - DIP Settings
13 - Media Type
(14 – 15) - EPF Count (if supported)
16 - Run Relay State (if supported)
17 - Batt Low (if supported)
18 - Model Number
19 - Ethernet Speed
(20 – 90) - Reserved
Read Only
317601 – 318500
(417601 – 418500)
–
Reserved
–
Dynamic Module Data
418001 – 418020
20
(1–3) -- Reserved
4 - Flags:
Bit 0: If 1, module has rebooted
since this bit was cleared, a write
to the Flags word with this bit set
will clear this reboot bit.
Bit (1–7) -- Reserved
5 - Reboot Count (LSW) - Read Only
6 - Reboot Count (MSW) - Read Only
(7–20) - Reserved
Read/Write
418021 – 419250
–
Reserved
–
