12
•
750-585 [2 AO 0-20 mA EEx i]
Process
Image
WAGO-I/O-SYSTEM
750
I/O
Modules
2.1.1.6 Process
Image
The analog output module 750-585 transmits 16-bit measured values and
8 optional status bits per channel.
The digitalized output value is transmitted in a data word (16 bits) as output
byte 0 (low) and output byte 1 (high) via the process image of the coupler /
controller.
This value is represented with a 12 bit resolution on bit B3 ... B14.
The three least significant bits (B0 ... B2) are not parsed.
Some fieldbus systems can process the status information using by means of a
status byte.
As the returned status byte of this output module is always zero, it will not be
parsed.
2.1.1.6.1
Standard Data Format
For the standard module 750-585, the output current ranging from 0 mA to
20 mA is scaled on the numerical values ranging from 0x0000 to 0x7FFF
Process values of module 750-585
numerical value
Output current
binary
Status-
byte
0 - 20 mA
Output value
hex.
dec.
hex.
0
0000 0000 0000 0000
00 00
0
00
2.5
0001 0000 0000 0000
10 00
4096
00
5
0010 0000 0000 0000
20 00
8192
00
7.5
0011 0000 0000 0000
30 00
12288
00
10
0100 0000 0000 0000
40 00
16384
00
12.5
0101 0000 0000 0000
50 00
20480
00
15
0110 0000 0000 0000
60 00
24576
00
17.5
0111 0000 0000 0000
70 00
28672
00
20
0111 1111 1111 1111
7F FF
32767
00