描述
使CPU可以继续执行当前的前台任务直到完成。本文利用PDIUSBD12的端点1进行命令的传输和应答，端点1每次接收计算机发送过来的8B指令，其指令格式如表2所示。例如，接收到十六进制码5201000300070050，表示读24C01器件从03字节开始的7个字节的数据。52H为R的ASCII码，57H为W的ASCII码。端点2用于数据的传输。
INDRAMAT ECO DRIVE AC CONTROLLER DKC02.3-040-7-FW
Indramat ecodrive AC-servo controller DKC01 1-040-7-FW
INDRAMAT RECO-G.06/01-FW SERIAL INTERFACE PLC RACK
INDRAMAT HDS03.2-W075N-HS12-01-FW DRIVE CONTROLLER
INDRAMAT CLM01.3-X-0-2-0-FW AC SERVO CONTROLLER
Indramat CCD01.1-KE05-01-FW Motion Control Rack W/Cards
INDRAMAT CPUB-03-01 SERIAL INTERFACE BOARD CPUB03-01-FW
INDRAMAT BTM03.1-NA-TA-TA-SA-VA-BA-2EA-FW OPER INT NEW
RexRoth Indramat ECO Drive DKC03.3-040-7-FW w/ ProfiBus
Indramat Rexroth CTA10.1B-001-FW Keypad new
