9   Encoder Input Slave Unit
9 - 6
GX-series EtherCAT Slave Unit User’s Manual
Abbreviations used for the counter status information description have the following meanings.
Encoder Input Slave Unit stores the  soft switch and the preset command value as output data, and can 
allocate required data to Output area.
The details of each data type are as follows.
Abbreviation Status name Operation
PACKn
Present value preset 
execution completed
Soft switch "Present value preset execution" completion flag
0→1: Preset execution completed
1→0: Soft switch "Present value preset execution" is set to 0
RACKn
Present value internal 
reset execution completed
Soft switch "Present value internal reset execution" completion 
flag
0→1: Reset execution completed
1→0: Soft switch "Present value reset execution" is set to 0
EXRESn
External reset generation 
flag
1: Turned ON at reset generation by external input/phase Z
0: Soft switch "present value external reset generation flag 
clear" is changed from 0 to 1
EXLAn
External latch A 
generation flag
1: Turned ON with external latch A event generation
0: Soft switch "external latch A generation flag clear" is 
changed from 0 to 1
EXLBn
External latch B 
generation flag
1: Turned ON with external latch B event generation
0: Soft switch "external latch B generation flag clear" is 
changed from 0 to 1
CERRn
Present value preset set 
value error
0: No setting error
1: Setting error generation
CRUNn Counter operation state
0: Counter stopped
1: Counter operating
9-2-2 Output Data Allocation
Data Size Detail
Soft switch 4 bytes Used to control the Encoder Input Slave Unit.
Preset command value 8 bytes
Specifies the value to be written over the counter present value data 
at preset execution.