FX Series Programmable Controlers Applied Instructions 5
5-94
5.9 External FX Serial Devices - Functions 80 to 89
Contents:
Pa
e
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.
. D
1
, S
3
or for lists/tabled devices D
3+0,
S
+9
etc.
MSB - Most Si
nificant Bit, sometimes used to indicate the mathematical si
n of a number, i.e.
positive = 0, and ne
ative = 1.
LSB - Least Si
nificant Bit.
Instruction modifications:
-
An instruction operatin
in 16 bit mode, where identifies the instruction
mnemonic.
P - A 16 bit mode instruction modified to use pulse (sin
le) operation.
D
- An instruction modified to operate in 32 bit operation.
D P - A 32 bit mode instruction modified to use pulse (sin
le) operation.
- A repetitive instruction which will chan
e the destination value on ever
scan unless
modified b
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.
