Hitachi HIDIC EH-150 Applications Manual page 67

Programable controller; ethernet module(eh-eth)
Hide thumbs Also See for HIDIC EH-150:
Table of Contents

Advertisement

(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 Figure 7.2.2.4.
Register name
C4CSR.OPC4
C4CSR.CRO4
CNCR.CLS4
Figure 7.2.2.4 Procedure to close connection (3)
(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
Chapter 7 Automatic Sending/Receiving function (ASR)
Request from another station
(1)
(2)
: By user,
: By EH-ETH
7-12
(4)
(3)

Advertisement

Table of Contents
loading

Table of Contents