| 摘要 |
PURPOSE:To obtain efficient and sure test system by storing a test program in a memory in advance at a master station so as to conduct automatically an optional test to each slave station sequentially according to the schedule table in interlocking with a clock device. CONSTITUTION:An additional storage device MEMa is provided to a receiver RECa of a master station and a test execution schedule table, command name, its test content and test data at normal state corresponding to each command are stored to each slave station SUB. When the time of a clock device WATCH comes to a scheduled time, a microprocessor MPU reads the content of the device MEMa and transmits a command to the slave station. An alarm signal transfer device ALARM of the slave station SUB executes the test requested by the own station test function and returns the result of test. The device RECa compares the result of test and that at normal state to discriminates whether or not the slave station SUB0 is normal and when normal, the next test is conducted and when faulty, an alarm is raised and the test data is displayed on a printer PRT. |
