7 transferring the instantaneous values – Yokogawa DA100 User Manual
Page 38
4-9
IM DA100-11E
Overview and Specifications of Ethernet Interface
4
4.7
Transferring the Instantaneous Values
The instantaneous values of the data measured on the DA100 (current measured data) are transmit-
ted to the PC that is connected through port No. 34151.
Note
• Up to four PCs can connect to port No. 34151 of one DA100.
• The commands described here do not affect the status byte.
• EF, EL, and EB commands do not suport sub-delimiters.
The measured data are transmitted using the following command.
EF
Outputs the measured/computed data in binary format.
Mode
Operation mode
Syntax
EFp1, p2, p3<terminator>
p1
Data to be output
0 Output only the measured/computed data.
1 Output the measured/computed data and alarm data
p2
First channel to output (001 to 560, or A01 to A60)
p3
Last channel to output (001 to 560, or A01 to A60)
Description
• A01 to A60 in p2 and p3 correspond to computation channels (A01 to A30 for the
stand-alone type).
• The data of expansion type channels that are not connected are not output.
• The data are output in the byte order specified by the EB command.
• Measured data and computed data are output simultaneously.
• If a parameter is omitted, the parameter specified previously is used.
• If a specified channel cannot output data, 2-byte data with a data length of zero
are output.
• The output format is as follows.
Year
Month
Day
Hour
Min
Sec
MS
DM
Data length
A1
B1
C1
D1
Measured data
Computed data
E1
F1
G1
H1
Am
Bm
Cm
Dm
Measured data
Computed data
En
Fn
Gn
Hn
Data length:
When p1=0: 8 + measurement ch
×
4 + computation ch
×
6
When p1=1: 8 + measurement ch
×
6 + computation ch
×
8
MS: Value in units of 0.1 s. 0 or 5.
DM: Dummy (undefined).
A1 to An: Unit number. Computation channel is fixed to 0x80.
B1 to Bn: Measurement channel number
C1 to Cn, G1 to Gn: Alarm status (level 1, 2)
(No output when p1 is 0)
0: No warning
1: Upper limit alarm
2: Lower limit alarm
3: Upper difference limit alarm
4: Lower difference limit alarm
5: Rate-of-change upper-limit alarm
6: Rate-of-change lower limit alarm