GE GFK-1541B manual Variable List for Produced Exchanges Example

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Example 3: EGD Configuration Using a Symbolic Name to Identify Consumers

There are three PLCs in this more complex EGD system using three Ethernet Global Data exchanges. PLC1 contains two Ethernet Interfaces (designated A and B), one of which is both a producer and a consumer. PLC2 is a consumer only. And PLC3 is both a producer and a consumer. The Adapter Names are used as the symbolic names to identify the consumer PLCs. No aliases have been configured, so DDP name resolution will be used. (See “Name Resolution” in the chapter: “Network Administration Support”, for more information.) Network-synchronized time stamping is not used. The identification of the PLCs and the details of the exchange are shown in the tables below.

PLC1

A B

PP

C

Exchange ID = 3

PLC2

C

Exchange ID = 2

Exchange ID = 1

PLC3

P

C

Producer/Consumer Information for Entire EGD System – EXAMPLE 3

Your Name for	P	C	Local	Ethernet Interface(s)
the PLC			Producer ID	Network	CCU Device	IP Address*
(Equipment				Adapter Name	Name
Folder Name)
PLC1	X	X	0.0.0.1	PLC1_A	PLC1_A	10.0.0.23
PLC1	X		0.0.0.1	PLC1_B	PLC1_B	10.0.0.34
PLC2		X	0.0.0.2	PLC2	PLC2	10.0.0.41
PLC3	X	X	0.0.0.3	PLC3	PLC3	10.0.0.50

P=Producer C=Consumer * Use your own IP addresses here.

Produced Exchanges Information – EXAMPLE 3

Local	Exchange	Local Adapter Name	Consumer	Consumer	Send	Producer	Reply	Status
Producer ID	ID		Type	Address	Type	Period	Rate	Word
0.0.0.1	1	PLC1_A	Name	PLC3	Always	1000	0	Stat1
0.0.0.1	3	PLC1_B	Name	PLC2	Always	1000	0	Stat3
0.0.0.3	2	PLC3	Name	PLC1_A	Always	1000	0	Stat2

Variable List for Produced Exchanges – EXAMPLE 3

Local	Exchange	Var	Name	Address	Length	Type	Description
Producer ID	ID	#
0.0.0.1	1	1	Conveyor1	%R00100	5	WORD	Conveyor1 in PLC1
0.0.0.1	3	1	Conveyor2	%R00105	5	WORD	Conveyor2 in PLC1
0.0.0.3	2	1	Vat1	%R00300	10	WORD	Vat1 in PLC3
0.0.0.3	2	2	Vat2	%R00310	10	WORD	Vat2 in PLC3

GFK-1541B Chapter 5 Ethernet Global Data 5-19