Block Diagram MTB Board #1 PC LabVIEW Program #1 Config File #1 MTB Board #2 LabVIEW Program #2 Config File #2 Database SUB record for each channel. Other records linked with SUB record. IOC CA Client (medm) Control SUB record and linked records. Reboot File PC 12JAN04 PS

MTBeddtg Control Record Arrangement MBBO record to select Event Code MBBO Direct record to mux Trigger Inputs select Delay Time select TG Gate Duration Enable Facility Clock events Enable Trigger_A Enable Trigger_B B INPI C INPA VAL INPD Enable Retrigger (optional AO record) Load MTB Channel Enable/Disable a channel Send Self-Test Event MBBO record to select Self Test Event Code. SUB Record using ce_MTBeddtg subroutine (optionally use BO records) 12JAN04 PS 5 sec B0 B1 B2 B3 MBBO record to select Personality INPE INPG INPJ Arm module INPH INPF Rising-edge sensitive command 1=Enable 1=Issue Code Now 1=Arm 5 sec Rising-edge sensitive command 1=Enable 1=LOAD Channel Now Composite Control Word Read by LabVIEW

MTBstatus Record Arrangement Status Word #1 from LabVIEW VAL INPA Channel Personality G Board number H Channel number I Number of MTB boards in PC J Program Operation Status K Watchdog Counter F Last Event Code Received SUB Record using ce_MTBstatus subroutine 12JAN04 PS Status Word #2 from LabVIEW INPB MBBI record to show Event Code show Delay Time C D show TG Gate Duration E MBBI Direct record to demux Status bits Channel Enabled EDD Delay Active TG Gate Active Facility Clock Events Enabled Trig_A Enabled Channel Retrigger mode. Trig_B Enabled Module Armed Facility Clock Health Interface Board Connection (optional AI record) (optionally use BI records) B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 Monitored Delay Time from LabVIEW Monitored Gate Duration from LabVIEW