公开(公告)号：US4031375A

公开(公告)日：1977-06-21

申请号：US666583

申请日：1976-03-15

申请人： Gerhard Jaskulke ,  Alois Schwarz ,  Armin Rutter

发明人： Gerhard Jaskulke ,  Alois Schwarz ,  Armin Rutter

IPC分类号： G06F11/00 ,  G06F11/273 ,  H04L12/24 ,  H04L12/26 ,  G06F11/04

CPC分类号： G06F11/0751 ,  G06F11/2736 ,  H04L12/2602 ,  H04L41/06 ,  H04L43/00

摘要： Apparatus is described for monitoring and diagnosing faults in the communication controller of a line termination unit in a program controlled data switching system. Individual devices detect faults and emit fault signals using safeguarding programs for the fault diagnosis. The communication controllers each contain a fault collection device which receives the individual fault signals and forms a fault word therefrom which describes the fault. Further, fault reaction signals are formed. A diagnosis routine device evaluates a diagnosis command read out from the diagnosis zone of a central storage unit. The diagnosis routine device contains a first decoding circuit for decoding the operations portion of the diagnosis command and for forming control signals therefrom. The control signals cause data channels to be switched through between the word output register and the word input register, as well as between a fault word register containing the fault word in the fault collection device and an intermediate buffer store. A second decoding circuit in the diagnosis routine device is activated by an additional control signal for producing a second series of control signals by evaluating a command of the diagnosis command. The control circuits and registers of the communication controller are connectable to the word input register under the control of the second control signals for the transfer of the diagnosis command.

摘要翻译： 描述了用于监视和诊断程序控制的数据交换系统中的线路终端单元的通信控制器中的故障的装置。 各个设备使用故障诊断的保护程序来检测故障并发出故障信号。 通信控制器各自包含故障收集装置，其接收各个故障信号并形成描述故障的故障字。 此外，形成故障反应信号。 诊断程序设备评估从中央存储单元的诊断区域读出的诊断命令。 诊断程序设备包括用于对诊断命令的操作部分进行解码并用于形成控制信号的第一解码电路。 控制信号使数据通道在字输出寄存器和字输入寄存器之间切换，以及在故障收集装置中包含故障字的故障字寄存器和中间缓冲存储器之间。 诊断程序设备中的第二解码电路被附加控制信号激活，用于通过评估诊断命令的命令产生第二系列控制信号。 在第二控制信号的控制下，通信控制器的控制电路和寄存器可连接到字输入寄存器，用于传送诊断命令。