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Command:RDSBYTE (RB)
- MS2000 or RM2000 syntax
-
Shortcut RB Format RDSBYTE axis [axis] [axis]…
- Tiger syntax
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Shortcut RB Format RDSBYTE axis [axis] [axis]… Type Axis-Specific
Requests the TG-1000 and MS-2000 to respond with the Status Byte.
The number is one byte, which can be broken down into 8 bits that represent the following internal flags:
| Bit 0 | 0 = No commanded move is in progress. 1 = A commanded move is in progress. This bit is synonymous with the STATUS command. If the bit is set, then STATUS returns B, otherwise STATUS returns N. |
|---|---|
| Bit 1 | 0 = The axis is disabled. It can be renabled by one of the following: High Level command MC <axis>+, cycling the clutch switch for the Z-axis, Low Level StartMotor command (hex 47), or a system reset.1 = The axis is enabled. |
| Bit 2 | 0 = Motor is inactive (off), 1 = Motor is active (on). |
| Bit 3 | 0 = Joystick/Knob disabled, 1 = Joystick/Knob enabled |
| Bit 4 | 0 = Motor not ramping, 1 = Motor ramping |
| Bit 5 | 0 = Ramping down, 1= Ramping up |
| Bit 6 | Upper limit switch: 0 = open, 1 = closed |
| Bit 7 | Lower limit switch: 0 = open, 1 = closed |
Reply
: <byte as hexadecimal>
Example
RB X :<0x8A> RB X Y :<0x8A><0x02>
The X-axis example value of 0x8A means the following:
B7: 1 -X Axis is at its lower limit
B6: 0 -X Axis upper limit switch open
B5: 0 -Ramping down, if ramping
B4: 0 -Motor not ramping
B3: 1 -Joystick/Knob is enabled
B2: 0 -Motor power is off.
B1: 1 -X Axis is enabled
B0: 0 -No commanded move is in progress
Note: Motor power can be on while a commanded move is not in progress and the stage appears not to be moving. This happens when the motor is either making a final adjustment to a commanded move or when it is applying a force to maintain the stage position.