GE SPM Series, Instruction Manual

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9-
2
SPM Synchronous Motor Protection & Control GE Power Management
9.2 MEMORY MAPPING 9 MODBUS COMMUNICATIONS
9
9.2 MEMORY MAPPING 9.2.1 MODBUS MEMORY MAP
Table 9–2: MODBUS MEMORY MAP (Sheet 1 of 5)
GROUP ADDR
(hex)
DESCRIPTION RANGE STEP
VALUE
UNITS FORMAT
CODE
FACTORY
DEFAULT
Product ID (Input registers at addresses 0000 to 007F)
PRODUCT
ID 0000 GE Product Device Code N/A N/A N/A U16 40
0001 Product Hardware Revision 1 to 26 1 N/A Alpha N/A
0002 Product Software Revision N/A N/A N/A Revcode N/A
0003 Product Modification Number 0 to 999 1 N/A U16 N/A
0004 Reserved
↓ ↓ ↓ ↓ ↓ ↓ ↓
007F Reserved
Actual Values (Input registers at addresses 0200 to 0FFF)
MOTOR
STATUS 0200 Motor Status Motorstatus N/A
0201 Estimated Time to Trip for Stall U16 N/A
0202 Reserved
↓ ↓ ↓ ↓ ↓ ↓ ↓
020F Reserved
TRIP
DATA 0210 Cause of Trip Tripcause N/A
0211 Lockout Time U16 N/A
0212 Reserved
↓ ↓ ↓ ↓ ↓ ↓ ↓
021F Reserved
LINE
CURRENT 0220 Instantaneous Line Current U16 N/A
0221 Filtered Line Current U16 N/A
0222 Reserved
0223 Reserved
0224 Reserved
LINE
VOLTAGE 0225 Instantaneous Motor Voltage U16 N/A
0226 Filtered Motor Voltage U16 N/A
0227 Reserved
0228 Reserved
0229 Reserved
* Range for collector-ring motors.
** Range for brushless motors.
1. The access password must be written correctly before any setpoints can be written via Modbus. The password is initially the same as the default password,
but the two passwords are stored separately, so the keyboard can not be used to change the communications password and vice-versa.
2. The allowable range of FLA is as follows: the minimum full load amps value is 2/5 times the CT ratio; the maximum is equal to the CT ratio.
3. The locked rotor current is range dependent on the FLA setpoint: the minimum is twice the full load amps and the maximum value is 12 times the FLA.
4. REGULATOR OUTPUT must be greater than or equal to FLOOR VOLTS, likewise FLOOR VOLTS must be less than or equal to REGULATOR OUTPUT.