VXi SM7100 ユーザーズマニュアル

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SM7100 Programming 

33 

The Relay Register Offset is located within the A24/32 address space of the module. When you 
send data to the register, the relay register offset is added to the A24/A32 base address and 
module base address: 
 

Relay Register Address = A24/A32 Base Address + Module Base Address + Register Offset 

 

or 

 

Relay Register Address = Module Relay Address + Register Offset 

 

Each bit of a 16-bit register represents the state of the relay (1 = closed, 0 = open). To change the 
state of any relay, it is only necessary to write a 16-bit integer to the specified register with the 
new configuration: 
 

Relay Register Address, data 

 
For example: 
 
•  writing a data value of "0" to the register at offset "0" would open the first sixteen relays 

 

•  writing a data value of 65535 to the same register would close the first 16 relays 

 

•  writing a data value of 65534 to the same register would close all relays except K1, which 

would be open 

 

NOTE   

Energize only one coil in a group of six at one time.