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Information in the following table applies to the SP10, SP16, and SP20.
Word Bit Function
03 0300 PC #0 Turns ON when a PC link error occurs.
0301 PC #1
0302 PC #2
0303 PC #3
0304 PC #0 Turns ON when PC link is normal or in RUN mode.
0305 PC #1
0306 PC #2
0307 PC #3
0308 1.0-second Clock Pulse
0309 0.1-second Clock Pulse
0310 0.01-second Clock Pulse
0311 Error (ER) Flag
0312 Carry (CY) Flag
0313 Less Than (LE) Flag
0314 Equals (EQ) Flag
0315 Greater Than (GR) Flag
04 0400 to 0407 Cannot be used
0408 Always ON Flag
0409 Always OFF Flag
0410 First Scan Flag
0411 Step Flag
0412 to 0415 Cannot be used
Information in the following table applies to the SP16 and SP20 only.
Word Bit Function
05 0500 to 0514 Cannot be used
0515 DR Data Transfer Enable Bit
06 0600 to 0615 Cannot be used
07 0700 to 0707 Maximum Scan Time Area
0708 to 0715 Current Scan Time Area
08 0800 to 0815 ATM1 Set Value Area
09 0900 to 0915 ATM2 Set Value Area
Descriptions: SP10, SP16, and SP20
Error Flag Bit 0311 turns ON when data for an arithmetic operation or indirectly ad-
dressed data is not in BCD. It also turns ON when a specified operand ex-
ceeds the data area, e.g., when an operand requires two words and the last
word in a data area is designated.
Arithmetic Flags The following flags are used in arithmetic calculation , and comparison in-
structions. These flags are all reset when END is executed, and therefore
cannot be monitored from a programming device.
Memory Areas Section 3-2
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