Endress+Hauser Liquiline System CA80TN, Operating Instructions Manual

Page: 30 / 162

Electrical connection Liquiline System CA80TN
30 Hauser
Leave the DIP switches on the module board in the "OFF" position (factory setting).
‣
Connect the external termination to terminals 81 and 82 on the front of module
485DP or 485MB for 5-V power supply.
 The external termination is used.
6.4.2 Bus address
Setting the bus address
1. Open the housing.
2. Set the desired bus address via the DIP switches of module 485DP or 485MB.
For PROFIBUS DP, valid bus addresses are anything between 1 and 126, and anything
between 1 and 247 for Modbus. If you configure an invalid address, software
addressing is automatically enabled via the local configuration or via the fieldbus.
1
2
4
8
16
32
64
128
on off
A0026776
 41 Valid PROFIBUS address 67
1
2
4
8
16
32
64
128
on off
A0026777
 42 Valid Modbus address 195
1
2
4
8
16
32
64
128
on off
A0026778
 43
Invalid address 255
1)
1) Order configuration, software addressing is active, software address configured at the factory: PROFIBUS 126,
Modbus 247
6.5 Ensuring the degree of protection
Only the mechanical and electrical connections which are described in these instructions
and which are necessary for the required, designated use, may be carried out on the device
delivered.
‣
Exercise care when carrying out the work.
Individual types of protection permitted for this product (impermeability (IP), electrical
safety, EMC interference immunity, Ex protection) can no longer be guaranteed if, for
example :
• Covers are left off
• Different power units to the ones supplied are used
• Cable glands are not sufficiently tightened (must be tightened with 2 Nm (1.5 lbf ft) for
the permitted level of IP protection)
• Unsuitable cable diameters are used for the cable glands
• Modules are not fully secured
• The display is not fully secured (risk of moisture entering due to inadequate sealing)
• Loose or insufficiently tightened cables/cable ends
• Conductive cable strands are left in the device