| 摘要 |
PROBLEM TO BE SOLVED: To obtain a communication controller that realizes two-way communication which does not give disturbances on a transmission signal of other communication controllers or a transmission signal of other system or not receiving disturbance, even if the gain of a 1st transmission line fluctuates. SOLUTION: When communication is stated from a slave station 2 to a master station 1, the slave station 2 sets a signal transmission level based on information of a transmission level of preceding communication stored in a transmission level memory 22 and then sets a signal transmission level, based on the information of a transmission level notified from the master station 1 for succeeding communication. Thus, even if the gain of an incoming transmission line 4 fluctuates, the signal transmission level of the slave station 2 is corrected to a proper value for each communication. |
