Specifications

21PROFINET Controller ME1PN1FW-Q
(c) 2013 MITSUBISHI ELECTRIC CORPORATION
Acyclic Request Header
The request buffer consists of an header and a data buffer area. The same header is used whatever
is the requested service. Consult each service detailed description to verify which fields are relevant.
Word
Offset
ID
Description
0
RequestID
ID of the request
1
2
ServiceID
service identifier (see above)
3
Status
Status of the request. shall always be equal to 0x55.
4
DeviceID
IO-Device number defined in the GX Configurator PN, or in the
case of implicit request, the IP address of the IO-device.
5
6
API
API number used to perform the Read
Value: 0 to 0xFFFFFFFF
7
8
SlotNumber
Target slot number.
Value: 0 to 0x7FFF
9
SubslotNumber
Target subslot numbe
Value: 1 to 0x8FFF
10
Index
Index in the slot or sub-slot
Value: 1 to 0xFFFF
11
Data length (byte)
Number of bytes stored in the request data buffer