KEYENCE DL-RS1A/FD-MH - Manual (Page 12)

10
Parameters of Commands and Responses
This section describes the parameters used with various commands and responses.
Electromagnetic Digital Flow Sensor FD-MH Series
■ Communication commands
There are two types of communication commands: read commands and write commands.
■ 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 of ID number 00 = 00, sensor amplifier of 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 all of the instantaneous flow rate (current value) data that DL-RS1A
periodically retrieves from all sensor amplifiers.
MS
Reads the control output state and instantaneous flow rate (current value) data
that DL-RS1A periodically retrieves from all sensor amplifiers.
DR
Reads the control output state and instantaneous flow rate (current value) 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.
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 FD-MH Series sensor amplifiers.
Writing read-only data results in a communication error (error number: 22).
*1 In the Data format column, "*" signifies a number from "0 to 9".
Point
Data
number
Data name Sensor head Data format *1 Number
of bytes
Attribute
*2
Data range
000
Instantaneous flow rate
(current value)
FD-MH10 **.** 5
R
00.00 to 99.99 *3
FD-MH50
FD-MH100
***.* 5 000.0 to 999.9 *3
FD-MH500 ****.* 6 0000.0 to 9999.9 *3
001 Integrated flow quantity
FD-MH10 *******.** 10
R
0000000.00 to 4294967.29 *4
FD-MH50
FD-MH100
********.* 10 00000000.0 to 42949672.9 *4
FD-MH500 ********* 9 000000000 to 429496729 *4
002
Instantaneous flow rate
(peak hold value)
FD-MH10 **.** 5
R
00.00 to 99.99 *3
FD-MH50
FD-MH100
***.* 5 000.0 to 999.9 *3
FD-MH500 ****.* 6 0000.0 to 9999.9 *3
003
Instantaneous flow rate
(bottom hold value)
FD-MH10 **.** 5
R
00.00 to 99.99 *3
FD-MH50
FD-MH100
***.* 5 000.0 to 999.9 *3
FD-MH500 ****.* 6 0000.0 to 9999.9 *3
005
Control output,
integration pulse
output,
error alarm output
states
-
* 1 R
0: Outputs 1, 2, 3 OFF
1: Output 1 ON, 2 OFF, 3 OFF
2: Output 1 OFF, 2 ON, 3 OFF
3: Output 1 ON, 2 ON, 3 OFF
4: Output 1 OFF, 2 OFF, 3 ON
5: Output 1 ON, 2 OFF, 3 ON
6: Output 1 OFF, 2 ON, 3 ON
7: Outputs 1, 2, 3 ON
006
Integration reset input
or bank switching input
* 1 R
0 : Off
1 : On
007 Bank switching state * 1 R
0: Bank A
1: Bank B
008
Sensor amplifier error
state
**** 4 R 0 to 1149 *5
010
Connected
sensor head
* 1 R
0 *6 : FD-MH10
1 *6 : FD-MH50
2 *6 : FD-MH100
3 *6 : FD-MH500
011
Temperature sensor
connection
* 1 R
0 *6 : Not connected
1 *6 : Connected
015
Temperature (current
value)
***.* 5 R 000.0 to 999.9 *7
016
Temperature
(peak hold value)
***.* 5 R 000.0 to 999.9 *7
017
Temperature
(bottom hold value)
***.* 5 R 000.0 to 999.9 *7