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(2) Control data
Device
Item
(S)+0
System area
(S)+1
Complete status
Signal received from
(S)+2
servo amplifier
Signal transmitted to
(S)+3
servo amplifier
(S)+4
Status
(S)+5 to (S)+7
System area
*1
The data on the setting side is as follows.
• User: Data before the execution of dedicated instructions is stored by user.
• System: Data after the execution of dedicated instruction is stored by CPU module.
Refer to Page 650, Section 15.5 for error codes at abnormal completion.
*2
(3) Functions
(a) The positioning data is read from the servo amplifier capable of processing the
absolute positions of the axes to be set, and the values converted with respect to a
unit are stored in "[Md.20] Current feed value" and "[Md.21] Machine feed value"
area of the LD75.
• Z.ABRST1: Axis 1
• Z.ABRST2: Axis 2
• Z.ABRST3: Axis 3
• Z.ABRST4: Axis 4
For absolute position detection system, carry out the absolute position restoration operation each time the
power is turned ON or CPU module is reset.
Servo amplifier
Setting data
The state at the time of completion is stored.
0: Normal completion
Other than 0: Abnormal completion (error code)
The following signal states taken in from the servo amplifier to the
input module are written.
b0: ABS data bit 0
b1: ABS data bit 1
b2: Transmission data READY flag
The ON/OFF states of the following data which are calculated using
the dedicated instructions by the "signals received from the servo
amplifier" and output to the servo amplifier are stored.
b0: Servo amplifier ON
b1: ABS transfer mode
b2: ABS request flag
Status of communication with servo amplifier
0: Communication completed (Set by user at communication start)
Other than 0: During communication (System stores)
CPU module
Control data
(S)+0
Input module
(S)+1
(S)+2
Output module
(S)+3
(S)+4
(S)+5
to
(S)+7
CHAPTER 14 DEDICATED INSTRUCTIONS
Setting range
*2
Current
feed value
Machine
feed value
Current value data
Z.ABRST
*1
Setting side
System
b0: 0/1
b1: 0/1
User
b2: 0/1
System
0
User/system
LD75
621
14
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Troubleshooting
