Version 1.02 | Fieldbus Guide | 7www.invertekdrives.com
3
Parameter Configuration for Fieldbus Operation
Index 3 Function: Modbus RTU Communication Loss Detection
Communication loss protection for Modbus RTU is selected here. For CAN, refer to the Fieldbus Guide for information.
Setting Display Timeout Action
0 0 Disabled
1 t 30 30ms
Trip (Coast Stop)
2 t 100 100ms
3 t 1000 1s
4 t 3000 3s
5 r 30 30ms
Ramp to Stop
6 r 100 100ms
7 r 1000 1s
8 r 3000 3s
9 t 10000 10s
Trip (Coast Stop)10 t 30000 30s
11 t 60000 60s
12 r 10000 10s
Ramp to Stop13 r 30000 30s
14 r 60000 60s
Parameter P-36 is a compound parameter with multiple indices. The indices are displayed sequentially when accessing the parameter through
a keypad or separately in Optitools Studio. The data from all indices is stored within the drive memory as a single WORD. When accessing this
value through a fieldbus network, the data format is as follows:
Reference: P-63 Function: Modbus RTU Mode Selection
E3 IP20, IP66NS Minimum: Maximum: 1 Default: 0 Scaling: 1 = 1
E3 IP66S
Compact 2 Basic
Fieldbus Information: CAN Index: 20A3h Modbus Register: 191 Format: UINT Units: N/A
Description:
Setting Function Description
0 Standard
All Modbus RTU telegrams are valid regardless of the destination address. In this case, communication loss
detection is only activated when no valid Modbus RTU data is present on the network for the time period selected
in P-36 regardless of the intended destination address. This is intended for larger Modbus RTU networks with
several noes where there may be some time delay between Modbus transactions specifically intended for the drive
however transactions intended for other network devices will be present.
1 Advanced
Only Modbus RTU telegrams intended for the specific node address are valid. Communication loss protection will
activate if no Modbus RTU message intended for the specific drive node address is received within the time limit set
in P-36. This mode is intended for use in small networks and must be used with any other Fieldbus network type
e.g. Modbus TCP, Ethernet/IP.
Parameter P-36 is a compound parameter with multiple indices. The indices are displayed sequentially when accessing the parameter through
a keypad or separately in Optitools Studio. The data from all indices is stored within the drive memory as a single WORD. When accessing this
value through a fieldbus network, the data format is as follows:
Function: Modbus RTU Mode Selection
CAN Index: 20A3h Modbus Register: 191 Format: UINT
CAN Index: 20A3h Modbus Register: 191 Format: UINT
CAN Index: 20A3h Modbus Register: 191 Format: UINT
Setting Function Description
Setting Function Description
Setting Function Description
All Modbus RTU telegrams are valid regardless of the destination address. In this case, communication loss
detection is only activated when no valid Modbus RTU data is present on the network for the time period selected
in P-36 regardless of the intended destination address. This is intended for larger Modbus RTU networks with
several noes where there may be some time delay between Modbus transactions specifically intended for the drive
however transactions intended for other network devices will be present.
Only Modbus RTU telegrams intended for the specific node address are valid. Communication loss protection will
activate if no Modbus RTU message intended for the specific drive node address is received within the time limit set
in P-36. This mode is intended for use in small networks and
be used with any other Fieldbus network type
e.g. Modbus TCP, Ethernet/IP.
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