Technical data
Table Of Contents
- 1 Important Notes
- 2 I/O Modules
- 3 Use in Hazardous Environments
- 3.1 Marking Configuration Examples
- 3.2 Installation Regulations
- 3.2.1 Special Conditions for Safe Operation of the ATEX and IEC Ex (acc. DEMKO 08 ATEX 142851X and IECEx PTB 07.0064)
- 3.2.2 Special conditions for safe use (ATEX Certificate TÜV 07 ATEX 554086 X)
- 3.2.3 Special conditions for safe use (IEC-Ex Certificate TUN 09.0001 X)
- 3.2.4 Special conditions for safe use (ATEX Certificate DEKRA 11ATEX0203 X)
- 3.2.5 ANSI/ISA 12.12.01
16 • 750-630 (/xxx-xxx) [SSI Transmitter Interface]
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.7 Process Image
Using the I/O module 750-630, a 5 byte input and output process image can be
transferred to the fieldbus coupler / controller via one logical channel. The
data received by the transmitter are stored in 3 input bytes (D0 ... D2). Neither
the input byte (D3) and four output bytes (D0 ... D3) nor the control byte (C0)
are used. The status byte (S0) indicates transmitter or cable errors (only
versions 750-630/000-004, /000-005 and /000-007).
Processing the status byte via the coupler / controller is optional, which means
that accessing or parsing the status information depends on the fieldbus sys-
tem.
Attention
The representation of the process data of some I/O modules or their variations
in the process image depends on the fieldbus coupler/-controller used. Please
take this information as well as the particular design of the respective
control/status bytes from the section "Fieldbus Specific Design of the Process
Data" included in the description concerning the process image of the
corresponding coupler/controller.
Input data Output data
S0 Status byte C0 Control byte
D0 Process data byte 0 (LSB) D0 0 (reserved)
D1 Process data byte 1 D1 0 (reserved)
D2 Process data byte 2 (MSB) D2 0 (reserved)
D3 0 (reserved) D3 0 (reserved)
Control byte C0
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 0 0 0 0 0 0 0
0 reserved