359
Words D+1 to D+8 contain information in ASCII displayed on a Peripheral
Device along with the bit address when FPD(177) is executed. Words D+5
to D+8 contain the message preset by the user as shown in the following
table.
Word Bits 15 to 08 Bits 07 to 00
D+1 20 = space First ASCII character of bit address
D+2 Second ASCII character of bit address Third ASCII character of bit address
D+3 Fourth ASCII character of bit address Fifth ASCII character of bit address
D+4 2D = “–” “30”=normally open,
“31”=normally closed
D+5 First ASCII character of message Second ASCII character of message
D+6 Third ASCII character of message Fourth ASCII character of message
D+7 Fifth ASCII character of message Sixth ASCII character of message
D+8 Seventh ASCII character of message Eighth ASCII character of message
Note If 8 characters are not needed in the message, input “0D” after the
last character.
Setting the Monitoring Time The procedure below can be used to automatically set the monitoring time, T,
under actual operating conditions when specifying a word operand for T. This
operation cannot be used if a constant is set for T.
1, 2, 3...
1. Connect a Peripheral Device, such as a Programming Console.
2. Use the Peripheral Device to turn ON control bit A09800.
3. Execute the program with A09800 turned ON. If the monitoring time current-
ly in T is exceeded, 1.5 times the actual monitoring time will be stored in T.
4. Turn OFF A09800 when an acceptable value has been stored in T.
Example In the following example, the FPD(177) is set to display the bit address and mes-
sage (“EMG”) when a monitoring time of 15 s is exceeded.
The first two instruction lines store the message “EMG” in D00105 and D00106.
The control data for FPD(177) specifies a FAL number of 010 and message out-
put.
An error will be detected if CIO 002000 does not turn ON within 15 s after CIO
000000 turns ON. When the error is detected, an FAL error number 010 will be
generated, the ASCII of the address of the bit responsible for CIO 0020000 not
turning ON would be output to D00101 through D00103, and the bit address and
message “EMG” would be displayed on a Peripheral Device. CY would also turn
ON, causing the contents of CIO 0005 to be moved to D00200.
Special Instructions Section 5-27
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