LINK 1 LINK PROGRAM(name) 2? 2 COMMAREA(data-area) 2.1? LENGTH(data-value) 2.2? DATALENGTH(data-value) 2 CHANNEL(name) 3? 3 INPUTMSG(data-area) 3.1? INPUTMSGLEN(data-value) 3.0? SYSID(systemname) 3.1? SYNCONRETURN 3.2? TRANSID(name)