Honeywell Work Light DR4300 User Manual

Table 8-14 explains what to do if Modbus communications are not successful.    

 

Verify that communications are enabled. 

Refer to Section 4 - Configuration, Startup, and 
Operation of Recorder with Display. 

Check that the configured baud rate is 
correct. 

Refer to Section 4 - Configuration, Startup, and 
Operation of Recorder with Display. 

Check that the device address is correct.  
Each address must be unique.  A recorder 
with two pens must have a unique 
address for each pen channel. 

Refer to Section 4 - Configuration, Startup, and 
Operation of Recorder with Display. 

Check that the communication wires are 
properly connected to the J3 connector on 
the communication printed circuir 
assembly (PCA). 

Refer to Section 2 - Installation. 

Verify that the communcation cable 
connects J2 on the communication PCA 
to J3 on the PCA for Pen 1.  The PCA for 
Pen 1 is on the right when facing the 
recorder. 

If communication is used for Pen 2, 
another communication cable must 
connect J1 on the communication PCA 
with J3 on the PCA for Pen 2.  

Refer to Section 9 - Replacing Hardware 
Assemblies. 

Replace the communication PCA. 

Refer to the replacement pocedure in Section 9 - 
Replacing Hardware Assemblies.