TM 5-3895-374-24-1 Serial link Question and answer code table FUNCTION QUESTION POSITIVE NEGATIVE CODE CODE ANSWER CODE       ANSWER CODE Read bit A A N Write bit B Y N Read mot C C N Write mot D Y N Read table of 10 E E N consecutive words Mirror M M N Case of a negative answer - bit or word number not present in the ATV-45 2, - non-existent question code, - incorrect question format (but with first character ?) Examples of messages Reading of bit B6 (frequency reference signal) question: ? A6 <LF> <CR> or ? A +00006 <LF> <CR> answer: > AO <LF> <CR> si B6 = 0 (positive reference) > A1<LF> <CR> se B6 = 1 (negative reference) Writing of bit B5 (ATV-45 2 run / stop command) question: ?B5 <SP> 1 <LF> <CR> for run ?B5 <SP> 0 <LF> <CR> for stop answer: > Y <LF> <CR> Reading of W22 (motor current) question ? C22 <LF> <CR> answer ? C + 00128 <LF> <CR> (motor current 12,8 A) Writing of word W19 (frequency reference) question: ? D19 <SP> 385 <LF> <CR> (reference 38,5 Hz) answer: > Y <LF> <CR> Reading of 10 consecutive words starting at W5 question: ? E 5 <LF> <CR> answer: > E +00002 <SP> +00007 <SP> +00128   <LF> <CR> word W5 = +00002 word W6 = +00007 word W7 = +00128 etc  up to W14L inclusive Mirror :  this function can be used for the communication test It sends back the succession of characters sent (from 1 to 16 numbers) question: ? M12345 <LF> <CR> answer: > Ml 2345 <LF> <CR> (page 3-267)