Panasonic Minas A4 Series

298
Communication
command
2
mode
C
• Read out of External Scale
Reception data
0
axis

checksum
2C
Status (L)
• AT500 series
Status (H)
*3 bit5 : Logical sum of bit0 to bit 5 of status (L) *4 bit4 : logical sum of bit6 and bit 7 of status (L)
Transmission data
• Absolute position data = 48bit (0 x 800000000000 to 0 x 7FFFFFFFFFFFh) 
bit7
Thermal alarm
6
0
5
Communication 
error
4
CPU, memory 
error
3
Capacity and 
photoelectric 
error
2
Encoder 
non-matching 
error
1
Initialization 
error
0
Over speed
bit7
0
6
0
5
Encoder 
error *3
4
Encoder 
alarm *4
3
0
2
0
1
0
0
0
Status (L)
Encoder ID
• ST771
Status (H)
*1 bit5 : Logical sum of bit0 to bit 5 of status (L) *2 bit4 : logical sum of bit6 and bit 7 of status (L)
bit7
Thermal alarm
6
Signal intensity 
alarm
5
Signal intensity 
error
4
Transducer 
error
3
ABS detection 
error
2
Hardware 
error
1
Initialization 
error
0
Over speed
bit7
0
6
0
5
Encoder 
error *1
4
Encoder 
error *2
3
0
2
0
1
0
0
0
Error code
bit7
0 : Normal

1 : Error
65
Command error
4
RS485 error
3210
• Command error occurs at other control modes than full-closed control.
0Bh
axis

encoder ID (L)
(H)
status (L)
(H)
(L)

absolute position data (48bit)


(H)
error code
checksum
2C
ST771 Address "0" data of EEPROM 32h
Encoder ID (L) Encoder ID (H)
AT500series Address "0" data of EEPROM 31h