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5 FUNCTIONS USED WITH SSCNET COMMUNICATION
5.8 Compatible Devices with SSCNETIII(/H)
■Optional data monitor setting
The following shows data types that can be set.
Set the data so that the total number of communication points per axis is no more than 6 points.
• Registered monitor
*1 Data with "Lower, Upper" in the address ID use lower word and upper word of 2 word data therefore two settings should be made. Be
sure to monitor the data in 2 words.
*2 Set an even number for the address ID of registered monitors.
*3 The "Cumulative current value", and "Servo command value" are command values for the servo amplifier. All other data types are servo
amplifier monitor values (feedback).
*4 Position commands are positioning units set in [Motion control parameter] [Axis setting parameter] "Fixed parameter" "Unit
setting".
*5 The servo command value is a command value for the servo amplifier. The coordinates differ from those of the Motion CPU, therefore
even if setting the home position, the value does not become 0.
• Transient command
*1 Number of words for response data (+8 to 11)
■Gain changing command, PI-PID switching command, control loop changing command
Gain changing command, PI-PID switching command, and control loop changing command becomes invalid.
■Amplifier-less operation
Amplifier-less operation cannot be used for axes connected to AlphaStep/5-phase. When amplifier-less operation is executed,
the axis changes to a disconnected state, and servo ready does not turn ON.
■Driver communication
The driver communication is not supported. If the driver communication is set in a servo parameter, a minor error (error code:
1C93H) will occur when the power supply of Multiple CPU system is turned ON.
Data type Unit Number of words Number of
communication data
points
Address ID
*1*2
Position F/B [pulse] 2 0
Encoder position within 1 revolution [pulse] 2 0 0018H(lower),
001AH(upper)
Encoder multi-revolution counter [rev] 1 0 0028H
Cumulative current value
*3
[Positioning command]
*4
20
Servo command value
*3*5
[pulse] 2 0
External encoder counter value [pulse] 2 2 7000H(lower),
7002H(upper)
Optional address of registered monitor 11
Data type Unit Number of words
*1
Number of communication
data points
Transient
ID
Storage device
(response data (+8
to 11)) content
Encoder resolution [pulse] 2 0 0305H
Servo amplifier S/W No. (First 8
characters)
[characters] 4 0 0312H
Servo amplifier S/W No. (Last 8
characters)
[characters] 4 0 0313H
Optional transient command 40
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