Rev. AX5
Draft
Page 11
AdvanTag 9100 Technical Manual
Chapter 2: Theory of Operation
AdvanTag Gateway
a
F
IGURE
4
ATR Gateway Connectivity with Host and Slave ATRs
Multiplexing
The ATR Gateway 9100 can multiplex any SECS message received on the Host port
(RS-232 or HSMS) to CAN bus, and vice versa. It can also multiplex any CIDRW ASCII
message received on the RS-232 Host port to CAN bus. The multiplexing is limited to
Asyst Technologies, Inc. specific CIDRW message standard.
Messages would be routed by Target ID mechanism. Target ID is the ID of each ATR box
which can be set using the DIP Switches on the box. Target ID is always present in any
CIDRW SECS / ASCII message. The ATR Gateway parses the incoming message from
the Host and based on the Target ID value, routes the message to the targeted node
connected on the CAN bus.
The Target ID of the ATR Gateway itself is always 0. Target Ids 1 through 8 would be
dedicated for each of the connected ATRs.
Protocols and Connections
The ATR Gateway can communicate with the host on the SECS or HSMS ports. Please
note that at a time only one of the two channels can be used as a host port.
USING SECS PROTOCOL AS HOST.
The ATR gateway can receive a SECSI/II
message on its RS-232 port. In this mode normal SECS 1 handshake takes place
between the Host and the ATR Gateway. Once the entire SECS message is received by
the ATR, its sent over to the desired node as described in next section. Please note that
only CIDRW SECS messages are supported by the ATR Gateway for multiplexing.
Summary of Contents for Advantag 9100
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