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1. 发明专利

DE3605152A1 未知
公开(公告)号：DE3605152A1
公开(公告)日：1986-09-11
申请号：DE3605152
申请日：1986-02-18
申请人： HITACHI LTD
发明人： ITOH ATSUSHI , OKAMURA MITSUSUKE , FUJIWARA KATSUHIRO , KASAHARA TOSHIRO
IPC分类号： G06F11/00 , G05B19/02 , G05B19/048 , G05B19/05 , G05B23/02 , G05B19/04
摘要： The states of the signals inputted to a programmable sequence controller or outputted from the programmable sequence controller are stored by a few scanning operations. A check is made to see if a combination of input and output signals which cannot be generated during one scanning operation in the normal operating mode exists in that memory content or not, thereby investigating causes of the occurrence of abnormalities.

2. 发明专利

DE3678271D1 未知
公开(公告)号：DE3678271D1
公开(公告)日：1991-04-25
申请号：DE3678271
申请日：1986-11-14
申请人： HITACHI LTD
发明人： FUJIWARA KATSUHIRO , OSHIGA TAKAYUKI , KASAHARA TOSHIRO
IPC分类号： G05B19/05
摘要： Data processing between selected I/O terminals (6a - 6n, 7a - 7n) is switched between processing by direct access to the I/O terminals and processing by indirect access through an image memory (41) having a one-to-one correspondence to the I/O terminals.

3. 发明专利

DE69029551T2 未知
公开(公告)号：DE69029551T2
公开(公告)日：1997-07-31
申请号：DE69029551
申请日：1990-08-16
申请人： HITACHI LTD
发明人： KAYAMA MASAHIRO , MOROOKA YARUO , OSHIGA TAKAYUKI , FUJIWARA KATSUHIRO
IPC分类号： G06F13/12 , G05B19/042 , G05B19/05 , G05B19/04
摘要： An input/output device (72) has a processor (202) which processes data strings received by the device (72). When a data string is received, it is passed to a serial interface (207) and a timing means (208). The serial interface (207) generates a signal which interrupts the existing processing by the processor (202) and causes the processor to start processing of the newly received data string. At the same time the timing means measures (208) the length of the data string and compares it with a predetermined length set by user-controllable data setting means (210). If the data string length reaches the predetermined length, the processor (202) is triggered to stop processing the new data string and to recommence the processing it was performing prior to interruption. The unprocessed part of the new data string is stored in a memory (205). In this way, urgent data strings, which are generally short, are processed rapidly and longer data strings are processed after the urgent data strings. It is not necessary for the data string to contain any information to identify its length.

4. 发明专利

DE3811658A1 未知
公开(公告)号：DE3811658A1
公开(公告)日：1988-10-27
申请号：DE3811658
申请日：1988-04-07
申请人： HITACHI LTD
发明人： FUJIWARA KATSUHIRO
IPC分类号： G05B19/05 , G05B19/048 , G06F11/00 , G06F11/36
摘要： In a sequence controller which is capable of debugging a program including a plurality of sequence programs, a program head code is provided in the program to identify respective sequence programs. In executing the program, the number of sequence programs which are executed is counted by detecting the program head codes associated therewith. Thus, sequence processing can be effected for a predetermined number of sequence programs by stopping the processing of the sequence when the count of the detected program head codes becomes equal to the predetermined number. In addition, it is possible to count only those sequence programs which satisfy a certain condition, such as sequence programs which require a particular operation or relate to a particular control element. In this way, debugging of the program is facilitated.

5. 发明专利

DE69029551D1 未知
公开(公告)号：DE69029551D1
公开(公告)日：1997-02-13
申请号：DE69029551
申请日：1990-08-16
申请人： HITACHI LTD
发明人： KAYAMA MASAHIRO , MOROOKA YARUO , OSHIGA TAKAYUKI , FUJIWARA KATSUHIRO
IPC分类号： G06F13/12 , G05B19/042 , G05B19/05 , G05B19/04
摘要： An input/output device (72) has a processor (202) which processes data strings received by the device (72). When a data string is received, it is passed to a serial interface (207) and a timing means (208). The serial interface (207) generates a signal which interrupts the existing processing by the processor (202) and causes the processor to start processing of the newly received data string. At the same time the timing means measures (208) the length of the data string and compares it with a predetermined length set by user-controllable data setting means (210). If the data string length reaches the predetermined length, the processor (202) is triggered to stop processing the new data string and to recommence the processing it was performing prior to interruption. The unprocessed part of the new data string is stored in a memory (205). In this way, urgent data strings, which are generally short, are processed rapidly and longer data strings are processed after the urgent data strings. It is not necessary for the data string to contain any information to identify its length.

6. 发明专利

DE68925319T2 未知
公开(公告)号：DE68925319T2
公开(公告)日：1996-05-23
申请号：DE68925319
申请日：1989-08-29
申请人： HITACHI LTD
发明人： OSHIGA TAKAYUKI , FUJIWARA KATSUHIRO , UMEDA KAZUNORI
IPC分类号： G05B9/02 , G05B19/048 , G05B19/05

7. 发明专利

DE68925319D1 未知
公开(公告)号：DE68925319D1
公开(公告)日：1996-02-15
申请号：DE68925319
申请日：1989-08-29
申请人： HITACHI LTD
发明人： OSHIGA TAKAYUKI , FUJIWARA KATSUHIRO , UMEDA KAZUNORI
IPC分类号： G05B9/02 , G05B19/048 , G05B19/05

8. 发明专利

JP2003046532A Facility-monitoring system, facility-monitoring terminal, local monitoring device, remote monitoring device, and computer software 审中-公开
标题翻译：设备监控系统，设备监控终端，本地监控设备，远程监控设备和计算机软件
公开(公告)号：JP2003046532A
公开(公告)日：2003-02-14
申请号：JP2001228267
申请日：2001-07-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KASAMATSU OSAMU , FUJIWARA KATSUHIRO , SAKAI KUNIYOSHI
IPC分类号： H04L12/46
摘要： PROBLEM TO BE SOLVED: To provide an economical and efficient facility-monitoring system by organic coordination among a facility/device user, a maintenance service personnel in charge, and a facility/device manufacture by managing a maintenance manual, maintenance component information, daily/periodic inspection recordings and maintenance history or the like unitarily with automatic collection data.
SOLUTION: In the facility-monitoring system comprising the facility-monitoring terminal 2, a local monitoring device 3 and a remote monitoring device 4, the facility monitoring terminal 2 includes an input conversion function 21 for an analog signal, a pulse signal and a contact signal or the like, a signal-processing arithmetic function 22, a processing/arithmetic result recording storage function 24, an external information input function 23 from an external input device 11, and a data/information/signal transmission reception function 25; the local monitoring device 3 has a data/information/signal transmission reception function; and the remote monitoring device 4 includes a facility/device monitoring/maintenance management information storage function; and a data/information/signal transmission reception function with external devices 51, 52 and the local monitoring device 3.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过管理维护手册，维护部件信息，日常/机器设备，通过设备/设备用户，维护维护人员和设备/设备制造之间的有机协调来提供经济和有效的设备监控系统，定期检查记录和维护历史等与自动收集数据一体。解决方案：在设备监控终端2，本地监控设备3和远程监控设备4的设备监控系统中，设备监控终端2包括用于模拟信号，脉冲信号和联系人的输入转换功能21 信号处理算术功能22，处理/算术结果记录存储功能24，来自外部输入装置11的外部信息输入功能23以及数据/信息/信号发送接收功能25; 本地监视装置3具有数据/信息/信号发送接收功能; 并且远程监视装置4包括设备/设备监视/维护管理信息存储功能; 以及具有外部设备51,52和本地监视设备3的数据/信息/信号发送接收功能。

9. 发明专利

JPH05197405A PROGRAMMABLE CONTROLLER WITH AUTOMATIC ACCESS FUNCTION FOR TELEPHONE LINE 失效
公开(公告)号：JPH05197405A
公开(公告)日：1993-08-06
申请号：JP1007292
申请日：1992-01-23
申请人： HITACHI LTD
发明人： TAMURA FUMIYUKI , FUJIWARA KATSUHIRO , SANO MASAHIRO , FURUSAWA SHINGO
IPC分类号： G05B19/05 , H04M11/00
摘要： PURPOSE:To facilitate the generation of a user program including communication control with a personal computer through the use of a public line by providing a public line interface part for a public communication network and transmitting/receiving information in accordance with a private communication instruction written into a sequence program. CONSTITUTION:When the address of a program memory in a user memory 3 is instructed by a program step which a program counter 2 shows, and the sequence program of the corresponding step is read, an instruction code in the program is inputted to a CPU 1, and it is decoded and executed in the CPU 1. A part except for the instruction code is inputted to an input/output interface part 4 or the user memory 3 as an operand. A state value or data is read from the input of a designated number, and it is transferred to an interface part 6 or data is received from the public line interface part 6. The state value is written into designated output and is written into the user memory 3 so as to execute sequence control.

10. 发明专利

JPH04107704A PROGRAMMABLE CONTROLLER 失效
公开(公告)号：JPH04107704A
公开(公告)日：1992-04-09
申请号：JP22746890
申请日：1990-08-29
申请人： HITACHI LTD
发明人： SHIKAYAMA MASAHIRO , MOROOKA YASUO , OSHIGA TAKAYUKI , FUJIWARA KATSUHIRO
IPC分类号： G05B19/05
摘要： PURPOSE:To average the execution timing of each control loop and to uniformalize the response delay of sequence control by discriminating the execution timing of each loop under a condition that the number of continuous system control loops executed in a designated cycle can be minimized when the control of the continuous system control loop is executed. CONSTITUTION:The area length of a scheduling table 201 is set in accordance with the least common multiple of a ratio of timer inter-ruption cycle that is the generating cycle of an execution cycle to a sampling cycle that is the execution cycle of each PID loop. Data of loop number is stored in areas 1-m corresponding to the generating timing of timer interruption as the data to specify a PID control loop set under the condition that the number of PID loops executed in the generating cycle of the timer interruption is minimized. Thereby, it is possible to uniformalize the response delay of the sequence control.

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