ProSoft Technology PLX31-EIP-SIE - Manual (Page 54)

EIP Protocol PLX3x Series
User Manual Ethernet and Serial Gateways
Page 54 of 218 ProSoft Technology, Inc.
September 17, 2014
5.2 EIP Configuration
5.2.1 EIP Class 3 Server Connection
The EIP Class 3 Server Connection is used when the gateway is acting as a
server (slave) device responding to message instructions initiated from a Client
(Master) device such as an HMI, DCS, or PLC5.
Configuring EIP Class 3 Server Connections in PCB
The PLX3x Server connection file size is user selectable for 100 or 1000
integers. If a value of 100 is selected valid registers will be from N10:0 to N10:99.
If a value of 1000 is selected valid registers will be from N10:0 to N10:999.
Accessing the Gateway’s Internal Memory
Data Type Tag Name Length of Each Element in
CIP Message Array Range for 4000
Element Database
BOOL BOOLData[ ] 1 0 to 63999
Bit Array BITAData[ ] 4 0 to 1999
SINT SINTData[ ] 1 0 to 7999
INT INT_Data[ ] 2 0 to 3999
DINT DINTData[ ] 4 0 to 1999
REAL REALData[ ] 4 0 to 1999
The following tables define the relationship of the gateway ’s internal database to
the addresses required in the MSG instructions:
MSG Instruction Type - CIP
Database
Address CIP Integer CIP Boolean CIP Bit Array CIP Byte CIP DINT CIP Real
0 Int_data[0] BoolData[0] BitAData[0] SIntData[0] DIntData[0] RealData[0]
999 Int_data[999] BoolData[15984] SIntData[1998]
1000 Int_data[1000] BoolData[16000] BitAData[500] SIntData[2000] DIntData[500] RealData[500]
1999 Int_data[1999] BoolData[31984] SIntData[3998]
2000 Int_data[2000] BoolData[32000] BitAData[1000] SIntData[4000] DIntData[1000] RealData[1000]
2999 Int_data[2999] BoolData[47984] SIntData[5998]
3000 Int_data[3000] BoolData[48000] BitAData[1500] SIntData[6000] DIntData[1500] RealData[1500]
3999 Int_data[3999]
BoolData[63999] SIntData[9998]