Omron 3G8F7-CRM21, User Manual

Page: 153 / 238

133
Shared Memory Area Specifications
Section B-3
B-3-8 Event Area in Detail
Event area (PC
→
BD)
This area is used when an explicit request message is sent by the PC to the
CompoNet Master Board or to a Slave or Repeater Unit.
Data format
Offset address: 0x3300
Detailed format
Definition of a node address with attributes
Offset
(Word)
Bit
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
+0 Byte length size after 1 (2 to 542)
+1 Reserved (0x00) SID
+2 0x02 0x28
+3 Low of Node address with attributes High of Node address with attributes
+4 Low of ServiceCode High of ServiceCode
+5 Low of ClassID High of ClassID
+6 Low InstanceID High of InstanceID
+7 ServiceData[1] ServiceData[0]
to to to
+272 ServiceData [531] ServiceData [530]
Name Access Description
SID Read/Write The same value is added to the response of a
sent explicit message. It is used to identify to
which request the response pertains.
Set a certain value by the user application.
Settable range: 0x00 to 0xFF
Node address with
attributes Read/Write It specifies the destination node address with
attributes. See the following page for the node
address with attributes.
ServiceCode Read/Write It specifies the service code defined by the
explicit message.
Settable range: 0x0000 to 0x00FF
ClassID Read/Write It specifies the Class ID from which an explicit
message is requested.
Settable range: 0x0000 to 0x00FF
InstanceID Read/Write It specifies the Instance ID from which an explicit
message is requested.
Settable range: 0x0000 to 0x00FF
ServiceData Read/Write It specifies the data defined by a service code.
Number of effective bytes: 0 to 532 bytes
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Type
0x0: Master Board
0x1: Normal IN or MIX Slave
0x2: Word OUT Slave
0x4: Bit IN or MIX Slave
0x5: Bit OUT Slave
0x7: Repeater 0 0 0 0 Master Board: Fixed to 0
Word Slave Unit: 0 to 0x3F
Bit Slave Unit: 0 to 0x7F
Repeater: 0 to 0x3F