2026-06-13 · Technical Insights
A Modbus Displacement Sensor: Two Registers to a 32-Bit Position
Reading position over Modbus means merging two 16-bit words into a 32-bit value, then scaling. Watch byte order, signed versus unsigned and poll lag.
Technical Articles & News
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Technical Articles (Page 7)
2026-06-10 · Technical Insights
PROFINET Displacement Sensor: Port Diagnostics and Topology
Unless topology is drawn, PROFINET diagnostics stay generic. LLDP points a broken cable to port level, so bottom-up checks find it first.
2026-06-10 · Technical Insights
An SSI Displacement Sensor: Clock Timing, Gray Code and Bit-Count Match
SSI displacement sensor reads garbage? Match bit count and Gray coding first. This walks the clock burst, MSB-first shift and 48 us silent interval.
2026-06-10 · Technical Insights
Displacement Sensor Bus Termination: Why It Has to Be 120 Ohm
Why must termination read 120 ohm on a displacement sensor? It matches cable impedance at both ends. Test: 60 ohm matched, 120 means one is missing.
2026-06-06 · Technical Insights
EtherCAT Displacement Sensor: ESI, State Machine and Distributed Clocks
An EtherCAT magnetostrictive displacement sensor needs ESI plus state machine. Match XML to firmware, walk INIT→OP, keep IN/OUT order or scan scrubs.
2026-06-05 · Technical Insights
Profibus Displacement Sensor: Diagnostics and Terminating-Resistor Traps
Most Profibus faults are on the wires. Its 390/220/390 DB9 network reads 110 Ω power-off with both ends ON: match is 220 Ω, held plug stays powered.
2026-06-05 · Technical Insights
EtherCAT Real-Time: Distributed Clocks Align Instant, Not Measurement Speed
EtherCAT cannot break physics. DC aligns samples but cannot cut wave travel, so a longer-range magnetostrictive displacement sensor still runs slower.
2026-06-03 · Technical Insights
CANopen Displacement Sensor: Node Address and Baud-Rate Faults
A CANopen magnetostrictive displacement sensor that will not join the bus fails on two things: node IDs 1-127, and baud rate set by cable length.
2026-06-03 · Technical Insights
PROFINET Displacement Sensor: Device Naming and RT/IRT Choice
PROFINET knows the sensor by name, not IP. Assign the device name over DCP first, use lowercase DNS names, then weigh RT against IRT for sync.
2026-05-31 · Technical Insights
CANopen Displacement Sensor: Object Dictionary and PDO/SDO Split
CANopen keeps values in the object dictionary. A magnetostrictive displacement sensor follows DSP 406: position at 0x6000 over TPDO, params over SDO.
2026-05-30 · Technical Insights
CANopen Multi-Magnet Reading: 8-Byte Frame Limits and PDO Mapping
One waveguide, several magnets, an 8-byte frame. A TPDO holds just two INT32 positions, so three magnets need SYNC batches; minimum spacing is 76 mm.
2026-05-30 · Technical Insights
Profibus Displacement Sensor: GSD Import and Slave Configuration
Profibus setup: three clicks, then traps. Import the GSD, hang the slave, set its address, pick the data module - a wrong module shifts every byte.