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Oyster HHDT Hand Held Data Terminal
The HHDT is manufactured for Automation Electronics by Oyster Terminals Ltd. It was developed as a replacement for the less capable DUKS unit for our pump off controllers.
Its enhanced capabilities include the transmission of the full 7-bit ASCII character set, a much larger selection of function keys, and the ability to display dynamometer cards graphically. It responds to most ANSI VT-100 control sequences appropriate for a hand held terminal and transmits extended codes for special function keys to allow their identification and use in the controller.
Features
Display
- 8 line by 20 column layout
- Up to 160 characters can be displayed
- Standard characters are formed using a 5 x 7 dot matrix
- Double height and double width characters can be displayed
- 128 x 64 pixels are available for graphic displays
- Supports extensive subset of VT100 commands
- Display can be back-lit, contrast controlled through key pad
Key Pad
- 45-key alphanumeric membrane key pad
- 9 row by 5 column key layout
- Optimized for Automation Electronics controllers
- Four mode selectable key overlays allow transmission of all 7-bit ASCII
- Left Arrow, Right Arrow, Up Arrow, and Down Arrow
- Home, End, Page Up, and Page Down
- Insert, Delete, and Help (Alt Function Key 1)
- Normal, Shift, and Control Function Key 1 through 10, and Alt Function Key 2 and 3
- Internal HHDT controls for turning the unit off, accessing the configuration menu, turning on the back light, and adjusting the contrast.
Specifications
| Mechanical | |
|---|---|
| Length: | 206 mm |
| Width: | 95 mm |
| Depth: | 50 mm |
| Weight: | 350 g |
| Environmental | |
| Storage temperature: | -4 to 131 deg. F (-20 to 55 deg. C) |
| Operating temperature: | 32 to 122 deg. F (0 to 50 deg. C) |
| Power | |
| Host powered: | +5 VDC +/- 0.25 VDC |
| Power consumption: | 30 mA typical, 35 mA with back-light on. |
| Memory back up | Lithium battery protects data, screen display and setup configuration. |
| CPU / Memory | |
| CPU: | 80C562 |
| Memory: | 32 kBytes ROM, 32 kBytes lithium battery backed RAM |
| Communication | |
| Baud Rates: | 75 to 19200 in standard steps. |
| Data word format: | 1 start bit, 7 or 8 data bits; odd, even, or no parity bit; 1 or 2 stop bits. |
| Handshaking: | DTR/CTS and X-ON/X-OFF |
| Data Transfer: | Special messages permit additional data download and upload capabilities with built in CRC-16 security check words for data reliability. |
| EMC Approvals | |
| Emission: | EN55022 Class B. |
| Static discharge: | EN55101-2 and IEC801-2 level 4. |
| Radiated susceptibility: | EN55101-3. |
| Conducted susceptibility: | IEC801-4 (1 kV). |
| Cables | Coiled cable HE14 one end, 25 pin D type the other. |
Key Assignments
Unshifted Oyster Keys
| A | B | C | D | E |
| #41 | #42 | #43 | #44 | #45 |
| F | G | H | I | J |
| #46 | #47 | #48 | #49 | #4A |
| K | L | M | N | O |
| #4B | #4C | #4D | #4E | #4F |
| P | Q | R | S | T |
| #50 | #51 | #52 | #53 | #54 |
| U | V | W | X | Y |
| #55 | #56 | #57 | #58 | #59 |
| 1 | 2 | 3 | * | Z |
| #31 | #32 | #33 | #2A | #5A |
| 4 | 5 | 6 | ↑ | ↓ |
| #34 | #35 | #36 | #01#48 | #01#50 |
| 7 | 8 | 9 | ← | → |
| #37 | #38 | #39 | #01#4B | #01#4D |
| - | 0 | . | Enter | MODE |
| #2D | #30 | #2E | #0D | Internal |
Mode Oyster Keys
| " | ` | ' | : | ; |
| #22 | #60 | #27 | #3A | #3B |
| ? | @ | $ | { | } |
| #3F | #40 | #24 | #7B | #7D |
| # | \ | _ | ~ | ^ |
| #23 | #5C | #5F | #7E | #5E |
| [ | ] | ! | | | & |
| #5B | #5D | #21 | #7C | #26 |
| ( | ) | < | > | = |
| #28 | #29 | #3C | #3E | #3D |
| F1 | F2 | F3 | / | % |
| #01#3B | #01#3C | #01#3D | #2F | #25 |
| F4 | F5 | F6 | PgUp | PgDn |
| #01#3E | #01#3F | #01#40 | #01#49 | #01#51 |
| F7 | F8 | F9 | Home | End |
| #01#41 | #01#42 | #01#43 | #01#47 | #01#4F |
| + | F10 | , | Space | MODE |
| #2B | #01#44 | #2C | #20 | Internal |
Mode-Mode Oyster Keys
| a | b | c | d | e |
| #61 | #62 | #63 | #64 | #65 |
| f | g | h | i | j |
| #66 | #67 | #68 | #69 | #6A |
| k | l | m | n | o |
| #6B | #6C | #6D | #6E | #6F |
| p | q | r | s | t |
| #70 | #71 | #72 | #73 | #74 |
| u | v | w | x | y |
| #75 | #76 | #77 | #78 | #79 |
| SF1 | SF2 | SF3 | Bkl | z |
| #01#54 | #01#55 | #01#56 | Internal | #7A |
| SF4 | SF5 | SF6 | Contrast | Contrast |
| #01#57 | #01#58 | #01#59 | Internal | Internal |
| SF7 | SF8 | SF9 | Status | Off |
| #01#5A | #01#5B | #01#5C | Internal | Internal |
| Ins | SF10 | Del | Help | MODE |
| #01#52 | #01#5D | #7F | #01#68 | Internal |
Mode-Mode-Mode Oyster Keys
| ^A | ^B | ^C | ^D | ^E |
| #01 | #02 | #03 | #04 | #05 |
| ^F | ^G | ^H | ^I | ^J |
| #06 | #07 | #08 | #09 | #0A |
| ^K | ^L | ^M | ^N | ^O |
| #0B | #0C | #0D | #0E | #0F |
| ^P | ^Q | ^R | ^S | ^T |
| #10 | #11 | #12 | #13 | #14 |
| ^U | ^V | ^W | ^X | ^Y |
| #15 | #16 | #17 | #18 | #19 |
| CF1 | CF2 | CF3 | ESC | ^Z |
| #01#5E | #01#5F | #01#60 | #1B | #1A |
| CF4 | CF5 | CF6 | GS | FS |
| #01#61 | #01#62 | #01#63 | #1D | #1C |
| CF7 | CF8 | CF9 | US | RS |
| #01#64 | #01#65 | #01#66 | #1F | #1E |
| AF2 | CF10 | AF3 | NULL | MODE |
| #01#69 | #01#67 | #01#6A | #00 | Internal |
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