Schweitzer Engineering Laboratories SEL-321 - Page 348

A-16 Firmware Versions Date Code 20011203
SEL-321/321-1 Instruction Manual
Firmware
Part/Revision No.
SEL-321-1 Relay Version
Description of Firmware
Revision B or C Main Board and Low-Level Test Capability
(ET3 or TT3):
This firmware differs from previous versions as follows:
- Added relay-to-relay integral communications-assisted
protection.
SEL-321-1-R409 60 Hz, 5 Amp, 1 I/O Board
SEL-321-1-R459 50 Hz, 5 Amp, 1 I/O Board
SEL-321-1-R509 60 Hz, 5 Amp, 2 I/O Boards
SEL-321-1-R559 50 Hz, 5 Amp, 2 I/O Boards
SEL-321-1-R610 60 Hz, 5 Amp, 1 I/O Board, ACB rotation
SEL-321-1-R710 60 Hz, 5 Amp, 2 I/O Boards, ACB rotation
SEL-321-1-R809 60 Hz, 1 Amp, 1 I/O Board
SEL-321-1-R859 50 Hz, 1 Amp, 1 I/O Board
SEL-321-1-R909 60 Hz, 1 Amp, 2 I/O Boards
SEL-321-1-R960 50 Hz, 1 Amp, 2 I/O Boards
This firmware differs from previous versions as follows:
- Corrected compressed ASCII configuration message.
- Added CEV L and CEV C to compressed ASCII
configuration message.
- Display fault location, LOC, in CHI compressed ASCII
command as a floating point number instead of a string.
- Add device identification number to ID command
transmission.
SEL-321-1-R408 60 Hz, 5 Amp, 1 I/O Board
SEL-321-1-R458 50 Hz, 5 Amp, 1 I/O Board
SEL-321-1-R508 60 Hz, 5 Amp, 2 I/O Boards
SEL-321-1-R558 50 Hz, 5 Amp, 2 I/O Boards
SEL-321-1-R609 60 Hz, 5 Amp, 1 I/O Board, ACB rotation
SEL-321-1-R709 60 Hz, 5 Amp, 2 I/O Boards, ACB rotation
SEL-321-1-R808 60 Hz, 1 Amp, 1 I/O Board
SEL-321-1-R858 50 Hz, 1 Amp, 1 I/O Board
SEL-321-1-R908 60 Hz, 1 Amp, 2 I/O Boards
SEL-321-1-R959 50 Hz, 1 Amp, 2 I/O Boards