GE GFK0579B 用户手册

下载
页码 154
6
Series 90–70 Remote I/O Scanner User’s Manual – July 1992
88
Select the Device Number 
The first step in configuring any device on a Genius bus is to assign its Device Number
(bus address). This is a number from 0 to 31 representing the serial bus address of the
device.  There are 32 available addresses on a bus.  One is needed for the Hand–held
Monitor; typically this is Device Number 0.  Another is needed for the Bus Controller.
Typically, this is Device Number 31.  A Remote I/O Scanner is usually assigned a Device
Number from 1 to 30.  Duplicate Device Numbers disrupt communications and are not
permitted.
Note
If a Remote I/O Scanner has a Device Number conflict on an operating
bus, it will not scan the modules in the remote drop until the fault is
cleared.
The HHM configuration screen appearance depends on the host CPU type configured
for the Hand–held Monitor.
HHM  Display (PLC Host Mode)
PROG BLOCK ID
I/O     ?–    ??
BLOCK NO.  ?
ref blk      nxt
If the host is a Series 90–70 PLC, the F1 key function (ref) is not displayed.
HHM  Display (PCIM Mode)
PROG BLOCK ID
__?__   #?
BLOCK NO.  ?
ref          nxt
Configuration Steps
1.
Press F2 (Block).  Then, enter the Device Number (1–30).  If you make a mistake,
press F2 again, then enter the correct number.
2.
Press the F3 (Enter) key.  If you are configuring the Remote I/O Scanner on an
operating bus, an error message appears if the number has been used for another
device.  If the Remote I/O Scanner is not online, be sure to assign a unique Device
Number, or there will be a Device Number conflict when it is powered up on the
bus.