Flex™ H6 User Guide
Page 21 of 29
RIEKER INC • 34 MOUNT PLEASANT ROAD • ASTON • PA • 19014 • USA
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tten consent of Rieker
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The content presented is provided for informational purposes only and subject to change.
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FORM NUMBER: H60009_12/14 UPDATED:
5/15/18
Packet Timing
Bytes in a packet must be less than 125 microseconds apart. Packets originating from the master must be
separated by at least 1 millisecond. Sensors will respond to the master as fast as possible.
Protection Levels (lock)
The sensor has two lock levels (0 and 1) to protect against unwanted modifications to the sensor. Some
functions work at all lock levels, while others will only work if the sensor is put into lock level 1 (Unlocked).
Functions that modify sensor settings require lock level 1, while functions that are only reading data will work
at either lock level 0 or 1.
When plugged in or reset, the sensor will always be at lock level 0 (Locked). The sensor will stay at a given lock
level until the Change Lock command is sent or the sensor is reset or unplugged.
RS485 Command Functions
Table 5 shows a list of all the user functions for the H6 inclinometer, including the function ID, name,
description of the function, and the lock level required to use that function.
The following pages give more details on each function, its format, expected response, and its use.
IDs not shown here are reserved for factory use only.
TABLE 5: RS485 FUNCTION LIST
ID Name Description Lock Required
0 ACK Acknowledge 0
1 NAK No acknowledge 0
2 Set Address Set sensor address 0
3 Get Address Returns the sensor address 0
4 Check Address Check for sensor at address 0
5 Get Angle Returns the angle 0
10 Change Lock Change lock level to 0 or 1 0
16 Restart Sensor Restarts the sensor 0
25 Set Zero To Value Set zero offset to float value sent 1
26 Set Zero To Angle Set zero offset to current angle 1
28 Get Firmware Revision Returns the firmware revision 0
30 Get Lock Level Returns the lock level 0
37 Get Serial # Returns the serial number 0
38 Set Baud Rate Set the baud rate 1
41 Set Filter Response Sets the response and filtering 1
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