Yokogawa Value Series FX1000 - Manual (Page 131)

3-49
IM 04L21B01-17EN
Commands
1
2
3
4
5
6
App
Index
FF Outputs FIFO data
Syntax FF p1,p2,p3,p4
p1 Action type
GET Output starting with the next block
following the previous output
RESEND Retransmit the previous output
RESET Set the FIFO buffer read position
(block) to the most recent data
position (block)
p2 First channel number (measurement
channel or computation channel)
p3 Last channel number (measurement
channel or computation channel)
p4 Maximum number of blocks to read out
1200 FX1002, FX1004
240
FX1006, FX1008, FX1010, FX2012
If the amount of measured data or computed
data is less than the specified number of
blocks, the FX sends all the available data.
Example Output two blocks of FIFO data from channels 1
to 10.
FFGET,001,010,2
Description • The FIFO buffer is a cyclic buffer in which the
oldest data is overwritten first. Use the FR
command to set the acquisition interval.
• The FX sends the specified number of blocks
(p4) of FIFO data starting with the next block
after those that were read out previously.
Be sure to read the data within the following
buffer period to prevent data dropouts. You
can not resend data if the buffer period
elapses.
• High-speed input model
Maximum buffer period: 1200 × (acquisition
interval)
• Medium-speed input model
Maximum buffer period: 240 × (acquisition
interval)
• Parameters p2 to p4 are valid when p1 is set
to GET.
• If you omit p4, the command will specify all
blocks.
• Make sure that the last channel number is
greater than or equal to the first channel
number.
• For details on the FIFO data output process,
see appendix 5.
• Set p2 and p3 by referring to the table in
section 3.3.
FL Outputs a log, alarm summary,
or message summary
Syntax FL p1,p2
p1 Log type
COM Communication
FTPC FTP client
ERR Operation errors
LOGIN Login log
WEB
Web operation
EMAIL E-mail
SNTP
SNTP access log
DHCP DHCP access log
ALARM Alarm summary
MSG
Message summary
MODBUS Modbus communication log
p2 Maximum log readout length
1 to 200 When p1 is set to COM or
MODBUS
1 to 1000 When p1 is set to ALARM
1 to 450 When p1 is set to MSG
1 to 50 When p1 is set to a value other
than those listed above
Example Output the 10 most recent entries in the
operation error log.
FLERR,10
Description • Outputs the log that is stored on the FX.
• If you omit p2, the command specifies the
maximum log length.
• On models that have the Ethernet interface
(/C7 option), you can set p1 to FTPC, WEB,
EMAIL, SNTP, or DHCP.
• On models that have a communication
interface (/C2, /C3, or /C7 option), you can set
p1 to COM or MODBUS.
IS Outputs status information
Syntax IS p1
p1 Status information output
0 Status information entries 1 to 4
1 Status information entries 1 to 8
Example Output status information entries 1 to 4.
IS0
Description You can use status filters (through the use of
the IF command) to mask the status output. For
details about status information, see chapter 5.
3.8 Output Commands (Setting, measured, and computed data output)