750-554 [2 AO 4-20 mA]
•
11
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
Approvals (cf. Chapter 2.2 of the Coupler/Controller Manual)
C
UL
US
(UL508)
ABS (American Bureau of Shipping)
BV (Bureau Veritas)
DNV (Det Norske Veritas)
Cl. B
GL (Germanischer Lloyd)
Cat. A, B, C, D
KR (Korean Register of Shipping)
LR (Lloyd's Register)
Env. 1, 2, 3, 4
NKK (Nippon Kaiji Kyokai)
RINA (Registro Italiano Navale)
(only for 750-554)
C
UL
US
(UL1604)
Class I Div2 ABCD T4A
KEMA
II 3 G EEx nA II T4
Conformity Marking
More Information
Detailed references to the approvals are listed in the document "Overview
Approvals WAGO-I/O-SYSTEM 750", which you can find on the CD ROM
ELECTRONICC Tools and Docs (Item-No.: 0888-0412)
or in the internet under:
Æ
Documentation
Æ
WAGO-I/O-SYSTEM 750
Æ
System Description
2.1.1.7 Process
Image
The analog output module 750-554 and its variations transmit 16-bit data and
8 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.
