E850-DTU(4440-GPRS) datasheet
Copyright ©2012–2018
，成都亿佰特电子科技有限公司
21
Address range
：
40065 (0x0040)
Note
：
The lower four bits of the register value represent the DI4, DI3, DI2, and DI1 counts
respectively. Writing a '1' indicates that the count is cleared and the pulse count is restarted.
For example:
Clear the DI2 and DI4 pulse count values and keep the DI1 and DI3 pulse count values. The
value written should be 0x0a and the corresponding binary value is 0000 1010.
Modbus RTU protocol Clear to zero pulse count value
Send
01
06
00 40
00 0a
08 19
Device ModBus
address
Function
code
Address
Write value
CRC code
Receiv
e
01
06
00 40
00 0a
08 19
Device ModBus
address
Function
code
Address
Write value
CRC code
Modbus TCP protocol Clear to zero pulse count value
Send
00 01
00 00
00 06
01
06
00 40
00 0a
Transmis
sion
identifier
Protoco
l
identifie
r
Length
Unit
identifie
r
Functi
on
code
Address
Write value
Receive
00 01
00 00
00 06
01
06
00 40
00 0a
Transmis
sion
identifier
Protocol
identifier
Length
Unit
identifie
r
Functi
on
code
Address
Write value
4.3.2 Switch quantity input DI report automatically
Switch quantity input report automatically function is to transmit the changed value when the
switch quantity changes. You can choose to transmit via RS485 or GPRS, or you can turn off this
function.
The corresponding Modbus register is 40082 (0x0051), and the value corresponds to the
function:
Turn off switch quantity input report automatically function
Switch quantity input report automatically via RS485
Switch quantity input report automatically via GPRS
