Setting The Profibus Address; Termination Resistors; Status Leds; Communication Watchdog - Grundfos CIM 150 PROFIBUS DP Functional Profile And User Manual

5.4 Setting the PROFIBUS address

The CIM 150 PROFIBUS module has two hexadecimal rotary
switches for setting the PROFIBUS address. The two switches
are used for setting the four most significant bits, SW3, and the
four least significant bits, SW4, respectively. See fig. 10.
SW3
Fig. 10 Setting the PROFIBUS address
The table below shows examples of PROFIBUS address settings.
You must set the PROFIBUS address decimally from
1 to 126. The address 126 is normally used for
special purposes and should not be used.
PROFIBUS address
8
20
31
126
A restart of CIM/CIU 150 has to be performed for a PROFIBUS
address change to take effect.
For a complete overview of the PROFIBUS addresses, see
section
10. PROFIBUS address.

5.5 Termination resistors

The termination resistors are fitted on the CIM 150 PROFIBUS
module. See fig. 11.
+5V
390
SW1
220 SW2
390
Fig. 11 Internal termination resistors
CIM 150 has a DIP switch with two switches, SW1 and SW2, for
cutting the termination resistors in and out. Fig.
switches in cut-out state.
SW1 SW2
Fig. 12 Cutting termination resistors in and out
DIP switch settings
Status
Cut in
Cut out
Undefined state
To ensure a stable and reliable communication, it is
important that only the termination resistors of the
first and last units in the PROFIBUS network are cut
in.
8
SW4
SW3 SW4
0 8
1 4
1 F
7 E
12 shows the DIP
SW1 SW2
ON ON
OFF OFF
ON OFF
OFF ON
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5.6 Status LEDs

CIM 150 PROFIBUS has two LEDs. See fig. 8.
• Red and green status LED, LED1, for PROFIBUS
communication.
• Red and green status LED, LED2, for GENIbus
communication between CIM/CIU 150 and the connected
Grundfos product.
LED1
Status Description
Off. CIM 150 has been switched off.
CIM 150 is ready for PROFIBUS data
Permanently green.
transmission (Data Exchange State).
CIM 150 does not support the connected
Permanently red.
Grundfos product.
Wrong or missing PROFIBUS
Flashing red. configuration or no contact to the
PROFIBUS master.
LED2
Status Description
Off. CIM 150 is switched off.
GENIbus communication between CIM
Permanently green.
150 and the Grundfos product is OK.
CIM 150 does not support the connected
Permanently red.
Grundfos product.
No GENIbus communication between CIM
Flashing red.
150 and the Grundfos product.
During startup, there may be a delay of up to 5
seconds before the LED2 status is updated.

5.7 Communication watchdog

The state of the PROFIBUS communication watchdog can be
changed with a PROFIBUS commissioning tool, for example
Siemens Simatic Manager. If the watchdog is enabled, all bits in
the ControlModule are automatically set to "0" if the PROFIBUS
communication is broken. See section
(ControlModule, module 2).
As a result, the booster system will be set to local mode and then
be operating according to the local operating mode, local setpoint
and local control mode.

5.8 Reaction to PLC "Stop button"

If the PLC is stopped by the operator, all output registers will be
set to "0".
As a result, the control bit RemoteAccessReq will be cleared, and
the booster system will be set to local mode and then be
operating according to the local operating mode, local setpoint
and local control mode.
7.2 Control module