TYPE50_TYPE_CODE
meb1->header.msg_type_code = TYPE50_TYPE_CODE;
meb2->header.msg_type_code = TYPE50_TYPE_CODE;
meb3->header.msg_type_code = TYPE50_TYPE_CODE;
crb1->header.msg_type_code = TYPE50_TYPE_CODE;
crb2->header.msg_type_code = TYPE50_TYPE_CODE;
crb3->header.msg_type_code = TYPE50_TYPE_CODE;