Instruction manual
6 - 1
 Communication (General Purpose Serial Interface)
The IV-S51M can communicate with a personal computer that transmits commands and receives
responses to process measurement execution commands.
List of processing function
1. Outline
• The following functions and commands are supported by IV-S51M.
Functions
Communication
port
 Measurement 
 execution
Executes measurement programs for specified 
object types and outputs the numeric value results.
COM
 Result data 
 reading
• Outputs the numeric value result of the last 
 measurement (measurement is not executed).
COM
 Lighting 
 control
• Monitoring illuminance
• Light level automatic adjustment
COM
Control lighting power source
• Setting up lighting control system
• Lighting ON / OFF
• Reading / writing light volume
• Reading / writing EEPROM light volume
I/O Link
 Self-diagnosis Diagnosing hardware of image processing board
COM
Item
Category Item Code Functions
Executing 
measurement
Measurement 
execution 1
0010 • Outputs the numeric value result of the 
  executed measurement.
• Maximum 512 bytes
Measurement 
execution 2
0011
• Outputs the numeric value result of the 
  executed measurement.
• If the volume of the data exceeds 512 bytes, 
  it will be divided into packets.
Measurement 
execution 3
0012 • Outputs the numeric value result of the last 
  measurement.
• If the volume of the data exceeds 512 bytes,
  it will be divided into packets.
Reading 
measurement 
data
Measurement 
data reading 1
0110 • Outputs the numeric value result of the last 
  measurement.
• Maximum 512 bytes
Measurement 
data reading 2
0111 • Outputs the numeric value result of the last 
  measurement.
• If the volume of the data exceeds 512 bytes, 
  it will be divided into packets.
Measurement 
data reading 3
0112 • Outputs the arithmetic result (double precision 
  floating decimal point) of the last measurement.
• If the volume of the data exceeds 512 bytes, 
  it will be divided into packets.
Controlling 
lighting 
Illuminance 
monitor
0118 Executes illuminance monitor to provide the 
measured light level and the evaluation result.
2. List of commands










