Yokogawa PC-Based MX100 - Manual (Page 18)

1-11
SM MX100-01E
Principles of Operation
1
2
3
4
5
6
7
Displays
The MW100 indicates its operating conditions with the following displays.
• 7-segment LED
• Status indicators
• Communication status LED
7-Segment LED
Displays the MW100 Data Acquisition Unit’s unit number, operation status, end of
operation, and errors.
• Unit Number Display
Unit numbers can be set from 00 to 89.
- is displayed.
• Display of the Self-Test Operation on Startup
When the power is turned ON the setting of dip switch 1 is displayed
followed by
the operation preparation status , and then a self check is performed. While the
self check is in progress, the following displays are repeated.
• Key Lock Status
A key lock function is included for preventing accidental manipulation of the MW100
front panel keys. The key lock status is indicated by a dot at the bottom of the unit
number. The example shown is for a unit of number 00.
Unit number and dot Unit number
• Keylock release • Keylock
• In-Progress Display
The following displays cycle while the CF card is being accessed or while calibration
is being performed.
• Operation Error Display
In error Exxx (where xxx is a three-digit number), the code is divided into two parts
which are displayed alternately. In the first part, the letter E appears in the left digit
with the hundreds digit of the error code to the right, and the second part consists of
the last two digits of the error code.
Example: Error code E234
Up to three error codes are saved.
For the contents of error codes and their meanings, see section 4.1, “Errors Displayed
on the 7-Segment LED and Corrective Actions.” You can clear one error that is
displayed by pressing the Stop key.
1.4 Functions of the MW100 Main Module