Bfm #6: Output Status - Mitsubishi FX3U-4AD User Manual

FX /FX /FX PLC User's Manual - Analog Control Edition
3G 3U 3UC
FX -4DA (4-channel Analog Output)
3U
5.4.4

BFM #6: Output status

The output status information of channel 1 to 4 is stored.
H
ch4
ch3
Value status (HEX)
0
1
* The output conditions conform to the output setting upon PLC stop (BFM #5).
1. Cautions regarding use of output status
• The output status setting is valid only if the PLC is running.
When the PLC is stopped, H0000 is automatically written.
• When the setting in any of the following buffer memory areas is changed, output updating is stopped.
H0000 is automatically written in BFM #6.
• BFM #0 (Output mode setting)
• BFM #5 (Output setting upon PLC stop)
• BFM #9 (Offset/gain setting value write command)
• BFM #19 (Setting change prohibition)
• BFM #20 (Initialization function)
• BFM #32 to #35 (Data to be output from each channel upon PLC stop)
• BFM #50 (Corrective function setting by load resistance)
• BFM #51 to #54 (Load resistance for each channel)
• BFM #60 (Status automatic transfer function Setting)
• BFM #61 (Error status data automatic transfer-to data register specification)
• BFM #62 (Upper/lower limit function status with automatic transfer to specified data register)
• BFM #63 (Disconnection detection status with automatic transfer to data register specification)
• BFM #99 (Data table transfer command)
ch1
ch2
Description
Output updating is stopped.*
Under output updating
5 Buffer Memory (BFM)
5.4 Buffer Memory Details
Initial value: H0000
Numeric data type: Hexadecimal (H)
A
B
C
D
E
F
G
H
I
J
E-23