27
CHAPTER 3 SPECIFICATIONS
3
3.
3 F
unct
ion List
3.3
Function List
The following table lists the functions of the head module.
Function
Description
Reference
Cyclic transmission
The inputs/outputs of modules connected to the head module can be handled just like those
of the Motion controller.
Transient transmission
The buffer memory of intelligent function modules can be accessed directly from the Motion
controller.
The Motion controller sends requests to the head module with dedicated instructions.
Programming Manual
(Motion SFC) for the
Motion controller used
Output mode setting for error
Specifies whether to clear or hold the output to each module when a stop error or a data link
error occurs in the head module.
Operation mode setting for a
hardware error
Specifies whether to stop the auto refresh of the head module or not, when a hardware error
occurs (when the head module detects SP.UNIT DOWN) in the intelligent function module.
Diagnostics
System monitor
Diagnostics of the head module and connected modules can be performed using GX
Works2.
SSCNET III
Communication
Condition Monitor
The connection status of whole SSCNET III/H can be checked using MT Developer2.
System error history
The history of errors that occurred in the head module and intelligent function modules can
be confirmed on a single screen.
Remote RUN/STOP
Changes the status of the head module to RUN or STOP, without using the switch.
Remote RESET
Resets the head module when it is in the STOP status, without using the switch.
Monitoring/test
The status of the head module devices and the buffer memory of the intelligent function
module can be monitored, and current values can be changed in GX Works2.
Use one of the following to monitor or change the current value.
• Device/buffer memory batch monitor
• Watch window
• Present value change
GX Works2 operating
manual
Forced on/off for external I/O
The external input/output of the head module can be forcibly turned on or off.
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