Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
Math Instructions 197
SCP - Scale with
Parameters
Instruction Type: output
The SCP instruction produces a scaled output value that has a linear
relationship between the input and scaled values. This instruction solves
the following equation listed below to determine scaled output:
y = [(y
1
- y
0
)/(x
1
- x
0
)](x - x
0
) + y
0
Addressing Modes and File Types can be used as shown in the following
table:
SCL Instruction Valid Addressing Modes and File Types
For definitions of the terms used in this table see Using the Instruction Descriptions on page 82.
Parameter
Data Files Function Files
CS - Comms IOS - I/O DLS - Data Log
Address
(1)
Mode
Address Level
O I S B T, C, R N F ST L MG, PD RI/RIX PLS RTC HSC PTO, PWM STI EII BHI MMI LCD Immediate Direct Indirect Bit Word Long Word Element
Source •• ••• • • ••
Rate •• ••• •
• • ••
Offset •• ••• •
• • ••
Destination • • • • • •
• ••
(1) See Important note about indirect addressing.
IMPORTANT
You cannot use indirect addressing with: S, ST, MG, PD,
RTC, HSC, PTO, PWM, STI, EII, BHI, MMI, CS, IOS, and
DLS files.
IMPORTANT
Do not use the High Speed Counter Accumulator
(HSC.ACC) for the Destination parameter in the SCL
instruction.
SCP
Scale w/Parameters
Input N7:0
0<
Input Min. N7:1
0<
Input Max. N7:2
0<
Scaled Min. N7:3
0<
Scaled Max. N7:4
0<
Output N7:5
0<
SCP
Execution Time for the SCP Instruction
Controller Data Size When Rung Is:
True False
MicroLogix 1100 word 331.27 μs 0.87 μs
long word 337.2 μs 0.87 μs
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Allen-Bradley MicroLogix 1100 Specifications

General

Processor	32-bit
Programming Software	RSLogix 500
Mounting	DIN rail or panel mount
Power Supply	24V DC
Type	Compact PLC
Digital Inputs	12
Digital Outputs	8
Analog Inputs	4 (depending on model)
Analog Outputs	Optional with expansion module
Programming Language	Ladder Logic
Operating Temperature	0 to 55 °C (32 to 131 °F)
Series	MicroLogix