DATA QUANTITY MEASURING SYSTEM

PURPOSE:To recognize the load of a communication control module by measur ing all line data connected to the communication control module intermediating the on-line data transmission between an electronic computer and a terminal equipment. CONSTITUTION:In the actual data transmission between SIOs #1-#n and a called terminal equipment, the content of an address A in a RAM 13 is incremented by one at every data transmission or data reception in the unit of one character. The operation is continued till interruption (i) is given to a controller 16 by a pulse (p) generated from a timer 15 when one second elapses. When any interruption (i) takes place, the content (a) of the address A and the content (b) (preceding maximum data) of the address B are compared, in case of a>b, the content (a) is written in the address B, and in case of a