H9 ASD Installation and Operation Manual 203

Trace Selection

Program ⇒ Utilities ⇒ Trace
In conjunction with parameter F741 – F745, this parameter is used to monitor
and store 4 ASD output waveform data points. The data may be read and stored
as a function of a tr ip (At Trip) or it may be initiated by the activat ion of a
discrete terminal activation (At Trigger). Set a discrete input terminal to Trace
Back Trigger Signal and activate the terminal to initiate the At Trigger read/
store function.
Table 9 on pg. 242 lists the items that may be selected for the data read /s to re
function along with the associated communication number for each selection.
The duration of the read/store cycle for the selected items is set at parameter
F741.
To acquire and store the data a com munications device and a PC are required.
The H9 ASD supports the following communications protocols: RS485
(MODBUS-RTU) Toshiba Proto col , USB Toshiba Protocol, CC-Link, ProfiBus ,
and DeviceNet (Refer to the manual of each protocol type for more
information).
Trace data may be viewed graphically via Program ⇒ Utilities ⇒ View Trace
Data.
Settings:
0 — None (disabled)
1 — At Trip
2 — At Trigger
Direct Access Number — F740
Parameter Type — Selection List
Factory Default — At Trip
Changeable During Run — Yes

Trace Cycle

Program ⇒ Utilities ⇒ Trace
This parameter sets th e record time for the Tr ace D ata events selected at F742
– F745.
See F740 for more information on this parameter setting.
Settings:
0 — 4 mS
1 — 20 mS
2 — 100 mS
3 — 1 Second
4 — 10 Seconds
Direct Access Number — F741
Parameter Type — Selection List
Factory Default — 100 mS
Changeable During Run — Yes

Trace Data 1

Program ⇒ Utilities ⇒ Trace
This parameter is use d to select the Tra ce Da ta 1 item from Table 9 on pg. 242
to be read and stored in accordance with the setup of parameters F740 and
F741.
See F740 for more information on this parameter setting.
Direct Access Number — F742
Parameter Type — Selection List
Factory Default — Output Frequency
Changeable During Run — Yes
F740 F742