Specifications

23PROFINET Controller ME1PN1FW-Q
(c) 2013 MITSUBISHI ELECTRIC CORPORATION
ServiceID
The field 'ServiceID' marks the type of request. Acyclic communication can be used for the following
services:
Service
Identifier
Description
Network detection
0x01
determines the number of connected IO devices
(see 'Network Detection Service')
IO-Device Detected
0x02
Read Implicit
0x03
see 'Record Block Implicit Read'
Write Explicit
0x04
see 'Record Block Explicit Write'
Read Explicit
0x05
see 'Record Block Explicit Read'
Alarm Request
0x06
see 'Alarm Request'
Alarm Ack
0x07
see 'Alarm Ack'
IO-Device Information
0x08
get information for a specific IO device
Read alarm log
0x09
see 'Alarm Log'
DeviceID
This ID is defined during PROFINET configuration with the GX Configurator PN tool.
Acyclic Service Request/Response Formats
Network Detection Service
Based on DCP identify request, this service allows to detect up to 255 IO-devices present on the
network (LAN). This function returns only the number of IO-Devices detected. After the call of this
service, it is needed to call the service IO-Device detected (serviceID = 2) to get more information on
each detected IO-Device.
Request Format
Word Offset
ID
Value
0
RequestID
PLC value
1