BFM
*# 0
*# 1
*# 2
# 3-# 4
*# 5
# 6
# 8-#19
In BFM's (buffer memory) with an “ * ”, data
can be written from the programmable cont-
roller using the TO command.
These BFM's should always be given when the
programmable controller goes from STOP to
RUN. Buffer memory (BFM's) are reset to their
default settings upon power on.
BFM
*#20
#25-#28
#29
#30
#31
*#21
*#22
*#23
*#24
●
The buffer memory also handles information
used to adjust the gain and offsets of the FX-
2DA unit. Status of the unit such as errors
are also available.
●
From BFM #29 and #30, data can be read
via the FROM command.
●
Offset value : the actual output value when
the digital input is 0.
●
Gain value : the actual output value when
the digital input is +1000.
contents
channel Initialization (Default = H00)
channel 1
channel 2
Reserved
Last data reset (Default = 0)
Reserved
selection of A-D
conversion speed
see note
Reserved
Gain/offset adjust prohibit
Initial value (0,1)
Offset/gain
setting command
G 2 O 2 G 1 O 1
Pro-
hibit
Permit
b 3 b 2 b 1 b 0
Reset all to default default value: 0
Offset data (in mV or
µ
A units)
default value: 0
Gain data (in mV or
µ
A units)
default value: 5,000
Reserved
Error status (See next page)
Identification code K3010 (See next page)
Reserved
*# 7
When set to 0, normal
speed is selected 18ms
When set to 1, high
speed is selected 3.5ms
3.4 Allocation of buffer memories (BFM)
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