2 CompoWay/F Communications Procedures
2 - 20
E5
C-T Digital Temperature Controllers Programmable Type Communications Manual (H186)
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Auto/Manual Switch
This operation command switches the mode to manual mode or automatic mode, based on the
related information setting. When the Controller is switched to manual mode, the “manual control
level” will be displayed. When the Controller is switched from manual mode to automatic mode,
the operation levelÅfs first parameter will be displayed. When the Controller is switched to manual
mode while already in manual mode, the command will be completed normally and the display will
not change (the contents will not be refreshed). The setting can be made in setup area 0.
An operation error will occur in the following situations.
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When the command is executed in “setup area 1”
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When auto/manual is set for an event input
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Switching to Manual Mode during Auto-tuning
If the mode is switched during auto-tuning (AT), the AT will be cancelled and the Controller will
be switched to manual mode.
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Parameter Initialization
The present settings are returned to the default values and written to non-volatile memory. This
command can be accepted in setup area 1 only. When this command is issued in setup area 0, an
“operation error” will be generated. (These settings are the same as the ones used when “FACT”
is selected for the setting data's set value initialization.)
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Alarm Latch Cancel
The applicable alarm latch can be cleared with the related information setting. The setting can be
accepted in both setup area 0 and setup area 1. An operation error will occur if communications
writing is disabled or if an non-volatile memory error occurs.
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SP Mode
Select the program SP mode or fixed SP mode with the related information setting. The setting
can be accepted in both setup area 0 and setup area 1. An operation error will occur in the
following situations.
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When AT is being executed
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When the SP Mode parameter is disabled (not displayed at the Controller)
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Invert Direct/Reverse Operation
Inverting or not inverting direct/reverse operation can be selected with the related information
setting. The setting can be accepted in both setup area 0 and setup area 1. The related
information specifications are written to non-volatile memory according to the write mode settings.
An operation error will occur in the following situations:
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When AT is being executed.
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When inverting direct/reverse operation is set for an event input.
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When executed in manual mode.
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Setting Areas
Control operation is executed in setting area 0. In this state, you can perform operations that are
permitted only during control or those that cause no problems even if control is in progress. These
operations include reading PVs, writing SPs, and changing RUN/RESET status.
Setting area 0, however, prohibits operations that affect control, including writing data at the initial
setting level. (Reading setting data is always allowed.)
In setting area 1, control operation is stopped. In this state, you can perform operations that are
not allowed in setting area 0. These operations include writing data at the initial setting level.
At power-ON, the Digital Controller is set in setting area 0. To move to setting area 1, use the
Summary of Contents for E5CC-T
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