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FX Series Programmable Controlers
Applied Instructions 5
5-94
5.9
External FX Serial Devices - Functions 80 to 89
Contents:
Page
RS - 
RS Communications 
FNC 80 
5-95
PRUN - 
FX
2
-40AP Parallel Run 
FNC 81 
5-96
ASCI - 
Hexadecimal to ASCII 
FNC 82 
5-98
HEX - 
ASCII to Hexadecimal 
FNC 83 
5-99
CCD - 
Check Code 
FNC 84 
5-100
VRRD - 
FX-8AV Volume Read 
FNC 85 
5-101
VRSC - 
FX-8AV Volume Scale 
FNC 86 
5-101
 
Not Available 
FNC 87
PID - 
PID Control Loop 
FNC 88 
5-102
 - 
Not Available 
FNC 89
Symbols list:
D - Destination device.
S - Source device.
m, n- Number of active devices, bits or an operational constant.
Additional numeric suffixes will be attached if there are more than one operand with the same
function e.g. D
1
, S
or for lists/tabled devices D
3+0, 
S
+9 
etc.
MSB - Most Significant Bit, sometimes used to indicate the mathematical sign of a number, i.e.
positive = 0, and negative = 1.
LSB - Least Significant Bit.
Instruction modifications:
 
An instruction operating in 16 bit mode, where 
 identifies the instruction
mnemonic.
P -  A 16 bit mode instruction modified to use pulse (single) operation.
D
 
-  An instruction modified to operate in 32 bit operation.
D
P -  A 32 bit mode instruction modified to use pulse (single) operation.
 
- A repetitive instruction which will change the destination value on every scan unless
modified by the pulse function.
 
- An operand which cannot be indexed, i.e. The addition of V or Z is either invalid or will
have no effect to the value of the operand.