8.3.3.
Analog Output
8.3.4.
Communication Function
8.4. Outer Dimensions
9.
Timing Chart
Conversion method: PWM conversion
Resolution: 13 bits or equivalent
Scaling: Digital scaling
Response rate: Approx. 0.5 seconds
* A ripple of 4 to 20 mA is caused at a resistive load of 250
Ω
and output of 20 mA.
Output Type
Ripple
0 to 1 V
0 to 10 V
1 to 5 V
4 to 20 mA
±25mVpp
±50mVpp
Resistive Load
10 k
Ω
or more
10 k
Ω
or more
10 k
Ω
or more
550
Ω
or less
Accuracy
±(0.5% of FS)
Start-stop transmission system
38400bps/19200bps/9600bps/4800bps/2400bps
1bit
7 bits/8 bits
Even parity/odd parity/none
1 bit/2 bits
ASCII codes
Non-procedural
* For more information on the communications function such as the send/receive format
and commands, see the separate A7000 Communications Function Operation Manual.
CR+LF/CR
RS-232C
Full duplex
15 m
1
TXD, RXD, SG
Two-line semi-duplex (polling selecting system)
500 m maximum
A maximum of 31 meters
Non-inverse (+), inverse (-)
BCC (block check character) checksum
RS-485
Synchronous System
Communication System
Transmission Rate
Start Bit
Data Length
Error Detection
Stop Bit
Character Code
Data Communication
Control Procedure
Signal Name in Use
Number of Units
Connected
Line Length
Delimiter
Ｅ
Ｍ
ＨＨ
ＨＩ
ＧＯ
ＬＬ
ＲＥ
ＰＨ
ＤＺ
Ｐ１
Ｐ２
Ｐ３
ＭＥ
ＬＯ
33
68
80
87
72
7
1
1
8
3
6
*3 + delay time + (*1 x 2) + 500
μs
*3 + delay time + (*1 x 2) + 500
μs + *4
Internal
sampling
Set sampling
S/H terminal
P.C (BCD defined)
*1
*2
*3
Comparison
output updating
*4
Start/hold type A
Start/hold type B
Delay time + (*1 x 2) + 500
μs
Delay time + (*1 x 2) + 500
μs + *4
Internal
sampling
Set sampling
S/H terminal
P.C (BCD defined)
*1
*2
Comparison output updating
*4
Instruction Manual for MODEL A7X1A-X(Load Cell Input) 11/12
*1 Set sampling
This is the practical sampling rate of the A7000 series that is set using the AVG
parameter of condition data (see the table below).
*2 P.C signal output width
This differs depending on the set sampling and is as shown below:
*3 External start signal
An external start signal should be 500
μs to one period of set sampling. You
can set the delay time to external start using the start/hold delay time
parameter of condition data.
*4 Comparison output delay time
Relay output: 10 ms maximum, photocoupler output: 200
μs maximum
Approx. 4.8 s
Approx. 1.92 s
Approx. 96 ms
Approx. 192 ms
Approx. 384 ms
Approx. 768 ms
Approx. 960 ms
Set Sampling
Period
1
2
4
8
10
20
50
Set AVG
Count
1041.65 times/sec
520.825 times/sec
260.4125 times/sec
130.20625 times/sec
104.165 times/sec
52.0825 times/sec
20.833 times/sec
Set Sampling Rate
Approx. 48 ms
Approx. 19.2 ms
Approx. 960
μ
s
Approx. 1.92 ms
Approx. 3.84 ms
Approx. 7.68 ms
Approx. 9.6 ms
Set Sampling
Period
100
200
400
800
1000
2000
5000
Set AVG
Count
10.4165 times/sec
5.20825 times/sec
2.604125 times/sec
1.3020625 times/sec
1.04165 times/sec
0.520825 times/sec
0.20833 times/sec
Set Sampling Rate
1
Approx. 220
μs
2
4
8
10
20
50
100
200
400
800
1000
2000
5000
Approx. 0.52 ms
Approx. 1.15 ms
Approx. 2.3 ms
Approx. 2.9 ms
Approx. 5.8 ms
Approx. 14.4 ms
Approx. 30 ms
Set AVG Count
P.C Output Width
Set AVG Count
P.C Output Width