How do I calculate Fieldbus Cycle Time & Bandwidth?

To calculate Fieldbus Cycle Time & Bandwidth: Enter Fieldbus / protocol, Number of nodes / slaves, Payload per node. Click Calculate. INDUGRID computes the result instantly using the formula: T_cycle = T_frame × N_nodes + T_overhead | Bandwidth_used = (payload × N) / T_cycle. No registration required.

What units does the Fieldbus Cycle Time & Bandwidth calculator use?

The Fieldbus Cycle Time & Bandwidth calculator uses the following units: nodes, bytes. SI units are used by default.

Is the Fieldbus Cycle Time & Bandwidth calculator free?

Yes. The INDUGRID Fieldbus Cycle Time & Bandwidth calculator is completely free, requires no account or login, and works on desktop and mobile browsers.

Automation & Control

Fieldbus Cycle Time & Bandwidth

Estimate the cycle time and available bandwidth for common industrial fieldbus and industrial Ethernet systems.

Units:

in LinkedIn

💡The effective cycle time is always longer than the theoretical minimum due to protocol overhead, jitter and processing time. For motion control, use EtherCAT or PROFINET IRT which achieve < 1ms deterministic cycle times. Standard PROFINET/Modbus TCP is not deterministic.

T_cycle = T_frame × N_nodes + T_overhead | Bandwidth_used = (payload × N) / T_cycle

Input

Fieldbus / protocol iSelect the industrial communication protocol.

Number of nodes / slaves iTotal number of connected devices (I/O nodes, drives, sensors) on the network.

nodes

Payload per node iProcess data (I/O) per node per cycle in bytes. Typical: 8–128 bytes.

bytes

Result

Typical minimum cycle time [µs] —

Theoretical bandwidth [Mbit/s] —

Effective data rate [kB/s] —

Suitable for motion control —

Notes —