YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, PA • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX ZEO Version 04/13/2021
Page 93
40034-40035
Read Only
1 hour flow-based injection rate average (IEEE 754 floating-point
format, most-significant word first)
40036-40037
Read Only
15 minute time-based injection rate average (IEEE 754 floating-point
format, most-significant word first)
40038-40039
Read Only
15 minute flow-based injection rate average (IEEE 754 floating-point
format, most-significant word first)
40040-40041
Read Only
60 second time-based injection rate average (IEEE 754 floating-point
format, most-significant word first)
40042-40043
Read Only
60 second flow-based injection rate average (IEEE 754 floating-point
format, most-significant word first)
Parameter functions
The result data functions available via Modbus are listed below. The registers are accessed using
Modbus functions 3, 6, and 16.
Note: The system must be stopped in order for any parameter changes to be accepted. An
exception response will be returned if a parameter change query is issued while the
system is running. Once the parameter changes have been made, use coil 00010 to save
the updated parameters before restarting the system.
Address
Access
Descriptions
40101 *
Read/Write
Current time - day of month
40102 *
Read/Write
Current time - month
40103 *
Read/Write
Current time - year
40104 *
Read/Write
Current time - hours (24 hour format)
40105 *
Read/Write
Current time - minutes
40106 *
Read/Write
Current time - seconds
40107 **
Read/Write
Injection Rate **See formatting info
40108 **
Read/Write
Maximum gas flow **See formatting info
40109 **
Read/Write
Maximum Injection pump capacity **See formatting info
40110 **
Read/Write
Odorant density **See formatting info
40111
Read/Write
Prop-to-flow setpoint (X.XX lb(kg)/hr)
40112
Read/Write
Flow no signal (XXX % range 1-100)
40113
Read/Write
Low flow shutoff (XXX % range 1-100)
40114 **
Read/Write
Odorant output **See formatting info
40115
Read/Write
Pulses per Second
40116
Read/Write
Pulses per Minute
40117
Read/Write
Bulk Tank low (XXX % range 1-100)
40118
Read/Write
Bulk Tank high (XXX % range 1-100)
40119
Read/Write
Inlet pressure low (XXX PSI range 1-100; X.XX Bar range 0-689)
40120
Read/Write
Inlet pressure high (XXX PSI range 1-100; X.XX Bar range 0-689)
40121
Read/Write
Injection rate low (XXX % range 1 to 100)
40122
Read/Write
Injection rate high (XXX % range 1 to 100)
40123
Read/Write
System Redundancy (0 - Default; 1 - Primary; 2 - Backup)
* Note: Registers 40101-40106 are Read-Only. Writes to these registers are ignored.
