Chapter 9  Serial Communication Module AS00SCM 
9- 37 
 
9.5  Normal Exchange Area 
1)  COM mode 
 
 
 
In the examples above, note that the Normal Exchange Area shows the corresponding data registers of the 
module and the PLC. 
  Module Status: 0 = stop, 1 = run 
  Error Code: refer to Section 9.7 for more information. 
  Card 1 & Card 2 Data Exchange State: occupies 4 data registers (32-bit data); each bit 1–32 represents the 
state of the corresponding data point 1–32 to be exchanged: 0 = none/fail, 1 = success. 
  Card 1 & Card 2 Data Exchange Mode Control: set the data register to 0: none, 1: once, 2: always. 
  Card 1 & Card 2 Data Exchange Trigger: occupies 4 data registers; each bit 1–32 represents the state of the 
corresponding data point 1–32 to be exchanged: 0 = no trigger, 1 = trigger. 
  Card 1 & Card 2 UD Link Group ID Trigger: set the group ID to be triggered.