
6-9
0 ('!/'+* 4 0*#
If a write block of five words, with all zeroes, is sent to the fast
analog input module (cat. no. 1771-IFF series A), default selections
will be:
• 1 to 5V dc or 4 to 20mA (dependent on configuration jumper
setting)
• BCD data format
• no real time sampling (RTS)
• no filtering
• no scaling
• single-ended inputs
• 8 times oversample
• no disabled channels
Table 11.A
Fast Analog Input Module (1771ĆIFF/A) Block Transfer Write
Configuration Block
Dec. Bits 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Octal Bits 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
+-" *%# #(#!/'+* 4 &**#(. /&-0
*%# #(#!/'+* 4 &**#(. /&-0
#( ')# ),('*%
/
+-)/
*,0/
3,#
'%'/( '(/#-
#( /')# .),('*% "/ $+-)/ '*,0/
/3,# *" "'%'/( $'(/#-
'%* '/. )'*')0) .!('*% 1(0#.
'%* '/. )2')0) .!('*% 1(0#.
&**#( 4 )'*')0) .!('*%
&**#( 4 )2')0) .!('*%
&**#( 4 )'*')0) .!('*%
&**#( 4 )2')0) .!('*%
&**#( 4 )'*')0) .!('*%
⇓⇓⇓⇓
&**#( 4 )2')0) .!('*%
$$.#/ (' -/'+*
'* (' -/'+*
+- '*-3 4
+*(3 1#-.),('*%
&**#( ),('*% '. (#
Default Configuration
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