GE GFK0579B 用户手册

section level 1 1
figure_ap level 1   
table_ap level 1  

The maximum amount of I/O configuration data for a remote drop is 4500 bytes.  This
amount will accommodate the configuration of a remote drop with:

H no more I/O modules than can be included in the Remote I/O Scanner’s I/O map;

or

H any number of discrete modules plus up to 16 analog modules (input and/or

output), with at least one option module (PCM, GDS, or ADS) in the remote drop;
or

H any number of discrete modules plus up to 41 analog output modules, with at least

one option module in the remote drop; or

H up to 29 analog modules (combination of input and output modules) with no

discrete modules.

If a planned remote drop is not within these maximums, you will need to estimate its
configuration data total to be sure it does not exceed 4500 bytes.  Attempting to store a
larger I/O configuration to a Remote I/O Scanner will cause Logicmaster 90–70 to
generate the message “Configuration File is Invalid”.  The configuration will not be
accepted.  The module will not operate properly until a valid configuration has been
stored to it.

If you need to find the I/O configuration data total, follow the steps below.  You can use
this table as a guide.  Two examples are shown on the next page.

Number of I/O Data Types                   

36

 (%I, %AI, %Q, %AQ)                                  
Discrete Input Modules, MDL2nn        

36

Discrete Input Modules, MDL6nn          

42

Discrete Output Modules           

 

38

Analog Input Modules

150

Analog Expander Modules

22

Analog Output Modules

86

Remote I/O Scanner

1

50

50

  Description

Total

 

a

Must be
4500 or less.

1.

For each data type (%I, %AI, %Q, %AQ) configured for the Remote I/O Scanner,
add 36 bytes to the total.  For example, if all four data types are configured, add
144.