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KB51599
I/O unit limits Type C thermocouple temperature range on SNAP‑AITM‑2
Revision:  2.0
Published:  5/26/2006
Applies To
Firmware for:
SNAP-PAC-R1
SNAP-PAC-R2
SNAP-UP1-ADS
SNAP-UP1-M64
SNAP-B3000-ENET
SNAP-ENET-RTC
SNAP-ENET-S64
B3000
B3000-HA
SNAP-B3000-MODBUS
Versions
Problem was discovered in version:  
R7.1d for Ethernet-based units
Problem was discovered in version:  
81.35 and prior for B3000, B3000-HA
Problem is corrected in version:  
R7.1e Ethernet-based units
Problem is corrected in version:  
81.36 for B3000 and B3000-HA
R1.1e for SNAP-B3000-MODBUS

SYMPTOMS

The maximum reading of a SNAP-AITM-2, Type C thermocouple is approximately 1550º C instead of 2320º C.

CAUSE

The I/O unit configures the module point type to 0x30 (+/- 25 mV range) instead of 0x20 (+/- 50 mV range).

RESOLUTION

Opto 22 has resolved this issue.

Relevant Downloads
No relevant downloads have been specified.
Questions? Contact Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

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