What is the Difference Between PIO-337 and PIO-347?
- Perla Madrigal (Unlicensed)
- Corey Boyles
The PIO-337 is the standard CANopen bus coupler for the Parker-I/O system. A cheaper alternative is the PIO-347. The following table lists the differences between the PIO-337 "standard" and PIO-347 "econo" versions of this bus coupler.
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In addition, the update rate of the PIO-347 is considerably slower than that of the PIO-337. * The PIO-347 requires the additional purchase of a PIO-602 Power Supply module
 | Standard | Econo |
|---|---|---|
Total I/O bits supported | 512 | 32 |
24V Fieldside Power Supply | Yes | No* |
No. of PDO | 32 Tx / 32 Rx | 5 Tx / 5 Rx |
Device profile | DS-401, programmable error response, marginal check, edge-triggered PDOs | DS-401, programmable error response |
Description | No1 | No2 |
Input current | 500 mA | 260mA |
 | Standard | Econo |
Base Update Rate | 1 ms | 5 ms |
Each Add'l Digital Point | 15 us | 100 us |
Each Add'l Analog Point | 40 us | 270 us |