YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
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NJEX 7300L ver.10012003
A
AA
A
A
PPENDIX
PPENDIX
PPENDIX
PPENDIX
PPENDIX
B:
B:
B:
B:
B: N-300 M
N-300 M
N-300 M
N-300 M
N-300 M
ODB
ODB
ODB
ODB
ODBUS
US
US
US
US
S
S
S
S
S
PECIFICA
PECIFICA
PECIFICA
PECIFICA
PECIFICATIONS
TIONS
TIONS
TIONS
TIONS
Boolean Registers
Control Functions,
Continued
Address
Access
Description
00007 ........... Read/Write ..............Local/Remote Load Cycle Control (toggle) (Liquid System Only)
00008 ........... Read/Write ..............Proportional to Time/Flow mode (toggle)
00009 ........... Read/Write ..............Save Parameters to EEPROM
00010 ........... Read/Write ..............Remote Inhibit / Run the N-300 (toggle)
00011............ Read/Write ..............Local/Remote Inhibit Control (toggle)
Status Functions
The status functions available via Modbus are listed below. The registers are accessed using Modbus function 1.
Status labeled with an “L” after the Access types are latching type status. A latching status provides a “since the last
read” type status where a set condition will hold it’s state until a read of that particular register was made by the
master device. Once a read is made, the status will reflect the current state.
Address
Access
Description
00101 ........... Read Only ............... System Stopped (0) / Running (1)
00102 ........... Read Only ............... Verometer Not-Filling (0) / Filling (1)
00103 ........... Read Only ............... Not in Standby (0) / Standby (1)
00104 ........... Read Only ............... Memory Module Invalid (0) / Valid (1)
00105 ........... Read Only ............... Z-65 Backup Disabled (0) / Enabled (1)
00106 ........... Read Only ............... English (0) / Metric (1)
00107 ........... Read Only ............... Proportional to Time (0) / Proportional to Flow (1)
00108 ........... Read Only ............... Analog (0) / Pulse (1)
00109............ Read Only ............... Linear (0) / Non-Linear (1) or Pulses/Sec (0) / Pulses/Min (1)<-Gas PPMV(1)<-LPG
00110............ Read Only ............... Gas (0) / Liquid (1)
00111 ............ Read Only (L) ..........No Power-Up (0) / Power-Up (1) since last coil read
00112............ Read Only ............... Odorant Tank Low Alarm Enabled (0) / Disabled (1)
00113............ Read Only ............... Signal Alarms Enabled (0) / Disabled (1)
00114............ Read Only ............... Verometer Alarms Enabled (0) / Disabled (1)
00115............ Read Only ............... Pump Alarms Enabled (0) / Disabled (1)
00116............ Read Only ............... Battery Alarm Enabled (0) / Disabled (1)
00117............ Read Only (L) ..........No Parm Change (0) / Parm Change (1) since last coil read
00118............ Read Only ............... Normal (0) / No Flow Standby (1)
00119............ Read Only ............... Normal (0) / Remote Inhibit (1)
00120 ........... Read Only (L) ..........New HOU/FLOW Data Available
00121 ........... Read Only ............... No Load Cycle (0) / Load Cycle Active (1) – Liquid System Only