Hitachi Hidic EH-150 Applications Manual page 57

Preliminary Rev.03
(b). CMCR.CMn = 1 ("Close mode control" is enabled. "n" is ASR connection number)
Even if EH-ETH receives a request to close from other station, EH-ETH does not close the connection unless a
user program is executed for closing the connection.
The time chart to close connection 4 is shown in Fig. 7.2.2.4.
Register name
C4CSR.OPC4
C4CSR.CRO4
CNCR.CLS4
(1). When EH-ETH receives a request to close connection 4 from another station, "Close requested bit" goes high.
(C4CSR.CRO4 is 1)
-------------------------------------------------------------------------------- Receiving a request to close from another station
(2). Confirm the connection opened (C4CSR.OPC4 is 1) and the request received (C4CSR.CRO4 is 1), and then set
1 to CNCR.CLS4.
----------------------------------------------------------------------------------------------------------------------- Request to close
(3). When EH-ETH receives a request to close from user program, EH-ETH closes the connection 4 and clear
C4CSR.OPC4.
------------------------------------------------------------------------- Clear "Request to close bit" and close the connection.
(4). Confirm the connection closed (C4CSR.OPC4 is 0) and cancel the request to close (CNCR.CLS4 is 0)
----------------------------------------------------------------------------------------------------- Cancellation of request to close
Description in this manual might be modified without notice.
Request from another station
(1) (2)
: By user, : By EH-ETH
Fig. 7.2.2.4 Procedure to close connection (3)
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Chapter 7 Automatic data transmission
(4)
(3)