46
Host Link communication
Section 3-4
Note
Make sure that the baud rate settings in CX-Thermo is the same as selected
on the Gateway with DIP-switch 1 and 2. It is required to use the following
communication format:
• Data length: 7 bits
• Stop bit length: 2 bits
• Parity: even
3-4
Host Link communication
In the following table the fixed communication blocks for Host Link communi-
cation are listed.
The required data on VR-memory address can be programmed in the R88A-
MCW151-E. For more detailed information refer to the R88A-MCW151-E
Operation Manual.
The status of the PROFIBUS communication can be checked by the R88A-
MCW151-E through the R88A-MCW151-E status word (see figure below).
This word is sent by the PRT1-SCU11 to the R88A-MCW151-E.In case
PROFIBUS communication fails, the first bit of the status word will be set to
OFF. If the PROFIBUS communication is active the same bit will be set to
Host Link
Device type
Module name
Output words
Input words
Total
output
words
Total
input
words
-
Empty slot (No device)
-
-
0
0
R88A-MCW151-E
“MCW151 Host Link 5 IW/5 OW”
VR(5) (Status word)
VR(6) - VR(10)
VR(0) - VR(4)
5
5
“MCW151 Host Link 10 IW /10 OW”
VR(10) (Status word)
VR(11) - VR(20)
VR(0) - VR(9)
10
10
“MCW151 Host Link 15 IW / 15 OW”
VR(15) (Status word)
VR(16) - VR(30)
VR(0) - VR(14)
15
15
