750-841 WAGO, 750-841 Datasheet - Page 61
750-841
Manufacturer Part Number
750-841
Description
CONTR.ETHERNET TCP/IP 10/100MBIT
Manufacturer
WAGO
Datasheet
1.750-841.pdf
(288 pages)
Specifications of 750-841
Rohs Compliant
YES
No. Of Digital Inputs
10
No. Of Digital Outputs
10
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3.1.5.3 Example of a Process Output Image
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
The following figure is an example of a process output image. The
configuration includes 2 digital and 4 analog outputs. Therefore, the process
image has a total data length of 5 (4 words for the analog data and 1 word for
the digital outputs). When using MODBUS protocol, output data can be read
back with an offset of 200
Fig. 3.1-7: Example of a Process Output Image
Note
All output data over 256 words can be read back with an offset of 1000
(0x1000) added onto the MODBUS address.
0x0000 / 0x0200 %QW0
0x0001 / 0x0201 %QW1
0x0002 / 0x0202 %QW2
0x0003 / 0x0203 %QW3
0x0004 / 0x0204 %QW4
0x0204 %QW4
0x0200 %QW0
0x0201 %QW1
0x0202 %QW2
0x0203 %QW3
0x0001 / 0x0201 %QX4.1
0x0000 / 0x0200 %QX4.0
0x0201 %QX4.1
0x0200 %QX4.0
MODBUS addresses
MODBUS addresses
Process input image
Process output image
Process output image
Process input image
MODBUS addresses
MODBUS addresses
Output modules
Highbyte
(Word)
Highbyte
(Word)
(Bit)
(Bit)
Word1
Word2
Word1
Word2
Word1
Word2
Word1
Word2
Lowbyte
Lowbyte
Ethernet
ON
LINK
TxD/RxD
ERROR
hex
(0x0200) added to the MODBUS address.
750 - 501
Bit 2
DO
DO: Digital Output
AO: Analog Output
Bit 1
Word1
Word2
AO
550
AO
550
Word1
Word2
Fieldbus Controller 750-841
Process Image
hex
G012925e
• 53
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