GEMTEQ I/O 4. GEMCAN I/O Scanner Configuration
4.2.1 Validity
Flag
Module 1 Px / Module 2 Px29)
The first P-Table address for each module’s configuration data contains the validity flag. Its
function is to prevent an uninitialised P-Table being used as valid configuration data. The user
must insert the hexadecimal value @CAF1 for Module 1 and @CAF2 for Module 2, into the
appropriate table to signify the GEMCAN I/O Scanner module configuration data is valid.
The insertion of any other value into the table renders inactive the respective GEMCAN I/O
Scanner module belonging to the host controller.
4.2.2 Node
ID
Module 1 (Port A Px+1, Port B Px+12) / Module 2 (Port C Px+30, Port D Px+41)
Range
0 to 127
Each device on a GEMCAN network must have a unique Node ID (Address). The user should
allocate these Node IDs as follows :-
Table 4-2
GEMCAN I/O Scanner - Node ID Selection
Node ID
Description
0
Reserved, device not active on the network
1 - 125
Available for any slave device.
i.e.
GEMCAN I/O Scanner (Slave)
GEMTEQ I/O Module
126 Master
device.
i.e.
GEMCAN I/O Scanner
127 Master
device.
i.e.
GEMCAN I/O Scanner
Note:
Devices with lower Node IDs have a higher priority access to the network.
Note:
The two ports on a GEMCAN I/O Scanner module cannot be configured at
the same Node ID.
i.e. If Port A is configured as a Master at node 126, then if Port B is
configured as a Master, it must have Node ID 127.
ID 126 and ID127 are reserved for GEMTEQ scanner masters, any master must be set to one of
these ID’s. It is possible to have two masters on a GEMCAN network when configured as
change-over masters.
GEMTEQ I/O Technical Manual (T2031En)
Rev.02 (10/10)
Page 4-3
Содержание GEMTEQ I/O GEM80
Страница 1: ...GEM80 GEMTEQ I O Series Controllers Publication No T2031En Rev 02 10 10 Technical Manual ...
Страница 2: ...This page intentionally left blank ...
Страница 28: ...GEMTEQ I O 3 GEM80 GEMCAN NETWORK GEMTEQ I O Technical Manual T2031En Page 3 8 Rev 02 10 10 ...
Страница 30: ...GEMTEQ I O 3 GEM80 GEMCAN NETWORK GEMTEQ I O Technical Manual T2031En Page 3 10 Rev 02 10 10 ...
Страница 44: ......
Страница 102: ......