User Manual

DI[D-SE-0030484.1.5] Modbus TCP/IP Communications Support
EIO0000001601 Draft 2013/07/17 109
” Number of words: 1 ≤ N ≤ 123
” Number of bytes: Twice the number of words
” Word values: 0000h to FFFFh
Response:
” Slave no.: 01h
” Function code: Same as request
” Address of first word written: Same as request
” Number of words written: Same as request
Identification Request
Function 2Bh: This function is used to identify the Smart Antenna.
Read request:
* : MEI = Modbus Encapsulated Interface
Response:
Detected Error Messages
When an anomaly in the message (or during its execution) is detected by the Smart Antenna to
which it is addressed, the Smart Antenna sends back a detected error message to the master
system.
Slave no. Function
code
Address of
1st word
written
Number of
words
written
Check
01h 10h Hi Lo Hi Lo
1byte 1byte 2bytes 2bytes 2bytes
(RTU mode)
Slave no. Function code MEI * Read Device ID
code
Object ID
01h 2Bh 0Eh 01h, 02h, 03h 00h
Index Object Name &
Description
Description Data Type
0 (0000h) Manufacturer name TELEMECANIQUE ASCII string
1 (0001h) Product code
2 (0002h) Version number Vx.y (for example:
V3.6)