Comtrol ES8508 Series User Guide - Manual (Page 203)

RocketLinx ES8508 Series User Guide: 2000575 Rev. A Modbus TCP Register Table - 203
ModBus TCP /IP Support
Modbus TCP Register Table
The latest firmware provides the initial release of the Modbus TCP/IP client service support for factory
automation applications. You can implement the modbus command using the command line interface in
console and Telnet modes, which allows you to modify some parameters such as, idle time, number of Modbus
masters, and the Modbus service port.
Note: The Modbus TCP client returns 0xFFFF to a Modbus master when pulling a reserved address.
05 Acknowledge
The slave has accepted the request and processing it, but a
long duration of time is required to do so.
06 Slave Device Busy
The slave is engaged in processing a long-duration program
command.
07
Negative
Acknowledge The slave cannot perform the program function received in
the query.
08 Memory Parity Error
The slave attempted to read extended memory, but detected a
parity error in the memory.
Word Address Data Type Description
System Information
0x0000 16 words
Vender Name =
“Comtrol”
Word 0 Hi byte = ‘C’
Word 0 Lo byte = ‘o’
Word 1 Hi byte = ‘m’
Word 1 Lo byte = ‘t’
Word 2 Hi byte = ‘r’
Word 2 Lo byte = ‘o’
Word 3 Hi byte = ‘l’
Word 3 Lo byte = ‘\0’
(other words = 0)
0x0010 16 words
Product Name = "ES8508"
Word 0 Hi byte = ‘E’
Word 0 Lo byte = ‘S’
Word 1 Hi byte = ‘8’
Word 1 Lo byte = ‘5’
Word 2 Hi byte = ‘0’
Word 2 Lo byte = ‘8’
Word 3 Hi byte = ‘\0’
(other words = 0)
Code Name Descriptions