2-11157449-1CDRE-CKI-A456Data TransmissionFunction2 For Using Data Transmission Function2.4 Transmission Specifications2.4.8.2 Transmission Control Resending SequenceTwo constants below are related to the transmission control resendingsequence.Both are transmission parameters like the transmission control monitoringtimers, whose settings can be changed for each system.• Retry 1: Number of resendings of a sequence character at an invalidor no response at all.Recommended value is 10 times.• Retry 2: Number of resendings of a text at a block check error(reception of NAK).Recommended value is 3 times.Parameter Contents and Set Value InitialValueRS030 Number of data bits 7 : 7 (bit)8 : 8 (bit)8RS031 Number of stop bits 0 : 1 (bit)1 : 1.52 : 20RS032 Parity specification 0 : No specification1 : Odd parity2 : Even parity2RS033 Transmission speed specification 1 : 150 (baud rate)2 : 3003 : 6004 : 12005 : 24006 : 48007 : 96008 : 192007RS034 Timer A Sequence monitoring timerServes as protection against invalidor no responseUnit : 0.1 sec. (Setting range : 0 to 100)30RS035 Timer B Text reception monitoring timerServes as protection against no responseof text end characterUnit : 0.1 sec. (Setting range : 0 to 255)200RS036 Retry 1 Number of resendings of a sequencecharacterat an invalid or no response(Setting range : 0 to 30)10RS037 Retry 2 Number of resendings of a text at a blockcheck error (reception of NAK).(Setting range : 0 to 10)3RS038 Block check method 0 : Check sum 027 of 125