Measurement Specialties 9116 User Manual

Pressure Systems, Inc.                                                                                        Model 9116 User’s Manual 
 
 

 

Page 90 

 

www.PressureSystems.com 

To change (toggle) the current IP address resolution state (ipaarpst) of a  

 

specified module, and then unconditionally “re-boot” it. 

 

“psirarp ethadr” 
where ethadr is the Ethernet address of the specified module in the 
following special hex-digit format 
‘xx-xx-xx-xx-xx-xx’ 

none (module re-boots) 

 
Description:  When a Model 9116 module receives this broadcast command, (by continuously  
 

 

  monitoring port 7000) it responds by toggling its current ARP method to one of  

 

 

  two states: dynamic resolution or static resolution. Then it restarts its firmware.  

 

 

  The result is essentially the same as a power-up restart, in that any TCP/IP  

 

 

  connection is lost, and the module returns to its normal startup state. However, if  

 

 

  it used the static resolution method before it received this command, after the re- 

 

 

  boot, it will not have a valid IP address until an external network server (RARP or  

 

 

  BOOTP) provides it with one. However, executing the command a second time  

 

 

  will restore it to using its original statically-assigned IP address (after another re- 

  

 

boot 

finishes). 

 

Just as for the “psireboot” command, the host must wait long enough for the re- 
boot process to be completed before it can again request a connection to the  
module. 
 
 
 

 
Example: 

● 

 

Reconfigure a specified module on the network so that it uses its “other” IP  

 

 

address resolution method, and also re-boot it. Presumably, the host knew the  

 

 

module’s current state (iparpst) as a result of a recent Network Query response  

  from 

the 

module. 

 

 

 

 

“psirarp 00-E0-8D-00-00-01” 

 
  Response: 
 

 

 

 

 

(None)