ICP CON I-7550E, Руководство пользователя, Страница: 27 / 102

I-7550E PROFIBUS/Ethernet Converter User Manual
(Version 1.00, June/2014)
PAGE: 27
When the user sends single data from the PROFIBUS Master, it needs to be
set as 0. If the user uses “Combined Method”, this value needs starting from
0.
Byte 10: The length of current Message
The I-7550E will depend on this value to send data to Ethernet device. That
means if the user set this property as zero, the I-7550E won’t send any data
to Ethernet Device. If this value is bigger than configured output length, the
I-7550E will only send the length of configured output, and the diagnostic
message and error message will be written. (About error message, please
refer to section 5.3).
Table 12 Output data area in System Control Mode (Byte 0 =2)
Byte Data type Description
System
setting
module
0 Byte
Operation mode
1 Byte
Reserved
2 Byte
Control Byte
3 Byte
Check Connection Status
4~19 Byte
Reserved
Output
module
20~219 Byte
Not available
Byte 0/Byte 2:
These two Bytes is the same with Read/Write Mode.
Byte 3: Check Connection Status
The user can check connection status by this property. For example, if the
user wants to check the status of connection ID 7, he can set this value as 7
and the connection status will show in Input Data Area Byte 7 of System
Control mode.
The I-7550E won’t transfer data from PROFIBUS Master to Ethernet device in
this mode. But it still can receive data from Ethernet device and will put data
into the Ethernet FIFO buffer.
3.3.2 Input Data Area
The first 20 Bytes of input data are reserved for the input data status as shown in
Table 13
、
Table 14 . It depends on the “Operation mode”. The user can handle