50
Host Link Communication
Section 3-5
The table below lists the message parameters.
3-5
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
Device
address
End code
Command
type
Parameter Number/
Command code
Data
1 byte
1 byte
1 byte
1 byte
2 byte
Message
parameters
Description
Device address
The address number of the target device.
End code
Indicates failure or success of the command transmission.
If the End code is not equal to 0, the data part must be con-
sidered invalid.
Command type
A command type code
1 = Read command
2 = Write command
3 = Special command
4 ~ FF = Invalid command
This is the same as sent to the device via the output data.
Parameter Number /
Command Code
Refer to the E5AK / E5EK Operation Manual.
In case the Command type is set to 1 or 2, use the Parameter
number to specify the parameter to be read or written.
In case the Command type is set to 3, use the Command
code to define the Special Operation.
Data
Data read from or written to the E5AK / E5EK Controller.
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
Summary of Contents for PROFIBUS DP GATEWAY
Page 1: ...OPERATION MANUAL PROFIBUS DP Gateway to Host Link Compoway F PRT1 SCU11 Cat No W01E EN 02 ...
Page 2: ...PRT1 SCU11 PROFIBUS DP Gateway Operation Manual Revised September 19 2005 ...
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