KEYENCE DL-RS1A - Manual (Page 13)

11
Parameters of Commands and Responses
This section describes the parameters used with various commands and responses.
■ Communication commands
There are two types of communication commands: read commands and write commands.
● Data that can be read with communication commands "M0", "MS", and DRQ input
For information on the data and the calculation function, refer to the manual supplied with
the sensor amplifiers.
■ ID numbers
This parameter is used with communication commands "SR" and "SW". Specify the ID number of the
target sensor amplifier using two digits (ASCII characters).
Example: Sensor amplifier with the ID number 00 = 00, sensor amplifier with the ID number 07 = 07
Communication
command
Attribute Description
SR
Read
Reads the data for the specified data number from the sensor amplifier with the
specified ID number.
M0 Reads the data that DL-RS1A periodically retrieves from all sensor amplifiers.
MS
Reads the control output state and data that DL-RS1A periodically retrieves
from all sensor amplifiers.
DRQ input
Reads all of the control output state and data that DL-RS1A periodically
retrieves from all sensor amplifiers when a DRQ input is received.
SW
Write
Writes setting data for the specified data number into the sensor amplifier with
the specified ID number.
AW Writes setting data for the specified data number into all sensor amplifiers.
Type of amplifier
Calculation
function OFF
Calculation function ON
Calculation
dedicated mode Other displays
Reference
difference display
Main unit
P.V. values
(comparator values)
R.V. values
(raw values)
P.V. values
(comparator values)
P.V. values
(comparator values)
Expansion unit
P.V. values
(comparator values)
R.V. values
(raw values)
P.V. values
(comparator values)
P.V. values
(comparator values)
Point
Parameters of Commands and Responses
■ Data numbers
Specify the data number using three digits (ASCII characters).
● Read-only data
The following table lists the types of data that can only be read from GT2 Series sensor amplifiers.
Writing read-only data results in a communication error (error number: 22).
*1 In the Data format column, "±" indicates that the value can be either "+" or "-" and "*" signifies a
number from "0 to 9".
*2 R: Indicates that the data type can only be read from the sensor amplifiers.
Data
number
Data name Data format *1 Number
of bytes
Attribute *2 Data range
000 Comparator value (P.V. value)
±***.**** 9 R -199.9999 to +199.9999 *5
001 Calculation display value
002 Raw value (R.V. value)
003 Peak value during sampling period *3
004 Bottom value during sampling period *3
005 Control output ** 2 R
0: All control outputs are off
1: Only HIGH output is on
2: Only LOW output is on
3: Error
4: Only GO output
8: HH output is on
16: LL output is on
006 Sensor amplifier error state ***** 5 R 0 to 65535 *6
010 *4 R.V. value of main unit (ID: 00) on which
calculation result was based
±***.**** 9 R -199.9999 to +199.9999
011 *4 R.V. value of expansion unit (ID: 01) on which
calculation result was based
012 *4 R.V. value of expansion unit (ID: 02) on which
calculation result was based
013 *4 R.V. value of expansion unit (ID: 03) on which
calculation result was based
014 *4 R.V. value of expansion unit (ID: 04) on which
calculation result was based
015 *4 R.V. value of expansion unit (ID: 05) on which
calculation result was based
016 *4 R.V. value of expansion unit (ID: 06) on which
calculation result was based
017 *4 R.V. value of expansion unit (ID: 07) on which
calculation result was based
018 *4 R.V. value of expansion unit (ID: 08) on which
calculation result was based
019 *4 R.V. value of expansion unit (ID: 09) on which
calculation result was based
020 *4 R.V. value of expansion unit (ID: 10) on which
calculation result was based
021 *4 R.V. value of expansion unit (ID: 11) on which
calculation result was based
022 *4 R.V. value of expansion unit (ID:12) on which
calculation result was based
023 *4 R.V. value of expansion unit (ID: 13) on which
calculation result was based
024 *4 R.V. value of expansion unit (ID: 14) on which
calculation result was based
Point