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A9F79310 SCHNEIDER

Brand: Schneider

Model number:  A9F79310 

Colour:new                  

Warranty: 12 months

Lead Time:3-day working day   

Country of origin: USA Price: Please contact us         

Product weight:0.40kg

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

A9F79310   SCHNEIDER   Controller module

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Products Name: A9F79310 SCHNEIDER

PRODUCT DESCRIPTION

In order to determine the number of shots required; the first factor is the ability for the circuit breaker to perform several trip-close operations in a short time and, the effect of these operations on the maintenance period.

Description:

Primary and 

Standby Unit 

System Status 

Register 

(%SW61)

Schneider Electric recommends that you become familiar with the Hot Standby 

status register bit positions.1.

Bits 15 and 16 identify the state of the controller to which your PC is connected. 

Reversely, bits 13 and 14 identify the state of the other controller.

For example, with the programming panel connected to the Primary unit, a bit 

sequence such as (1,1,1,0) for bits 13 to 16 would normally indicate that this 

controller is the Primary unit, and the other controller is the Standby unit. Reversely, 

with the programming panel connected to the Standby unit, the same bit sequence 

should be (1,0,1,1).2.

These bit indications must match the information displayed on both keypads.

A very important piece of information, given by bit 11, permits you to know if the 

current controller is to be considered as the "A-Controller" or the "B-Controller". This 

A versus B attribute is selected after identifying the MAC address of the embedded 

Ethernet port: A-Controller is the controller whose CPU module shows the smaller 

MAC address value. Reversely, B-Controller is the controller whose CPU module 

shows the greater MAC address value.3.

Unity use the IEC convention for referencing registers so



Bit 13 is %SW61.3



Bit 14 is %SW61.2



Bit 15 is %SW61.1



Bit 16 is %SW61.0

1. A dedicated EFB exists (HSBY_ST), which allows the user to split onto application 

boolean variables the state of these bit positions. In turn these bits may easily be 

used to animate an Operator Screen on Unity Pro. Anyway, no doubt a user trained 

to directly identify these bits will be an efficient one.

2. The fact that the status register holds potentially different contents on Primary and 

Standby proves that the contents of the status register on the Standby is not updated 

with the contents of the Primary’s status register.

3. That means that some provisions should be made, at the application level, in order 

to be able to cope with a maintenance operation resulting in a MAC address relative 

height inversion.

A9F79110   SCHNEIDER

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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