Elgas DATCOM, Operating Instructions Manual

Page: 150 / 228

9
Connecting Inputs
148
9 Connecting Inputs
Three digital inputs can be connected to the ELCOR device, marked as DI1 to DI3. The
ELCOR plus has 4 digital inputs in the basic version, marked DI1 to DI4. Other inputs can be
added to the device via plug-in modules.
Digital inputs can be set by the utility SW as binary or LF pulse. The electrical connection of the
meters is described in Section 5.6.2.
ELCOR
Inputs Module Terminals Pulses
Indication of the gas
meter rotation direction
Binary Encoder
Digital
inputs
Basic
design
DI1 LF
LF direction

---
DI3 ---

---
DI2 LF ---

---
S0-NAM --- --- --- NAMUR
S0-SCR --- --- --- SCR
Table 22 Options of digital inputs for the ELCOR device
Notes:
1) S0-EXT1 extension module cannot be used for the ELCOR device
2) Without 4-20 mA analogue input option
ELCOR plus
Inputs Module Terminals Pulses
Indication of the
gas meter
rotation direction
Binary Encoder
Digital
input
Basic design DI1 LF LF direction

---
DI4 ---

---
DI2 LF ---

---
DI3 LF ---

---
S0-EXT1 DI1 HF (NAMUR) HF direction

NAMUR NAMUR
DI2 HF (NAMUR)

NAMUR NAMUR
DI3 LF LF direction

---
DI6 LF

---
DI4 LF LF direction

---
DI7 LF

---
DI5 LF LF direction

---
DI8 LF

---
S0-EXT1/HF DI1 HF (NAMUR) HF direction

NAMUR NAMUR
DI2 HF (NAMUR)

NAMUR NAMUR
S0-NAM --- --- --- NAMUR
S0-SCR --- --- --- SCR
Table 23 Options of digital inputs for the ELCORplus device