5

Effect of PLC Modes and Actions on EGD Operations

The table below indicates what happens to the configuration and operation of EGD when in different PLC modes and when certain PLC actions take place.

For example, the normal PLC mode for EGD operation is RUN with Outputs enabled. In this PLC mode, EGD remains configured and exchanges are both produced and consumed. If the PLC mode is set to STOP with I/O disabled, the Producer ID remains configured, but production and consumption stop.

When configuration is lost, the EGD configuration must be stored again.

 

Producer ID remains

Configuration-Based Exchanges

PLC Mode or Action

configured if…

continue to be…

 

 

 

 

 

Configured

Produced

Consumed

 

 

 

 

 

 

 

PLC Mode

 

 

 

 

 

 

 

 

 

RUN-Outputs Enabled

YES

YES

YES

YES

 

 

 

 

 

RUN-Outputs Disabled

YES

YES

NO

YES

 

 

 

 

 

RUN-SUSPEND I/O 1

YES

YES

NO

NO

STOP-I/O Enabled

YES

YES

YES

YES

 

 

 

 

 

STOP-I/O Disabled

YES

YES

NO

NO

 

 

 

 

 

PLC Action

 

 

 

 

 

 

 

 

 

RUN-Store Logic

YES

YES

NO3

NO3

STOP-Store Logic

YES

YES

NO3

NO3

 

 

 

 

 

STOP-Clear Logic

YES

YES

NO3

NO3

STOP-Config Store

Replaced2

Replaced2

NO3

NO3

STOP-Clear Config

NO

NO

NO

NO

 

 

 

 

 

PLC Power Cycle

YES

YES

NO3

NO3

Ethernet Interface

YES

YES

NO3

NO3

Restart

 

 

 

 

 

 

 

 

 

1RUN-SUSPEND I/O refers to the SUSIO logic function.

2Producer ID and exchange definitions are replaced.

3Producer ID and exchanges continue to be configured or not depending on the PLC mode prior to the action.

Note

The DOIO logic function does not affect EGD production or consumption.

GFK-1541B

Chapter 5 Ethernet Global Data

5-5

Page 154
Image 154
GE GFK-1541B manual Effect of PLC Modes and Actions on EGD Operations, PLC Mode or Action